[2025-10-02T06:06:39.327307] [QUERYOME] Starting research for query 2059: 'Instructions:
 Answer the question below. First, respond with the single best option letter (A, B, C, or D). Then provide a concise reasoning (1–3 sentences). Use both the retrieved evidence and your own medical knowledge to choose the most accurate answer.

Question:
Wrong statement regarding grey rami communicates is

Options:
A. Connected to spinal nerve
B. Present medial to white rami communicantes
C. Carries pre-ganglionic fibres
D. Fibres are non-myelinated'
[2025-10-02T06:06:39.370630] [PI] Starting research for query: 'Instructions:
 Answer the question below. First, respond with the single best option letter (A, B, C, or D). Then provide a concise reasoning (1–3 sentences). Use both the retrieved evidence and your own medical knowledge to choose the most accurate answer.

Question:
Wrong statement regarding grey rami communicates is

Options:
A. Connected to spinal nerve
B. Present medial to white rami communicantes
C. Carries pre-ganglionic fibres
D. Fibres are non-myelinated'
[2025-10-02T06:06:39.372543] Saving text to bench_final/run1/medmcqa/medmcqa_3619/pi_initial_prompt.txt
[2025-10-02T06:06:39.377894] [PI] Calling o3 for initial analysis...
[2025-10-02T06:06:46.677756] [PI] Reasoning iteration 1
[2025-10-02T06:06:46.680340] [PI reasoning] **Evaluating grey rami communicantes**

I need to answer the multiple-choice question regarding grey rami communicantes. They connect the sympathetic trunk to spinal nerves and carry postganglionic sympathetic fibers, which are unmyelinated. 

The statements show that A is correct since they connect to spinal nerves, and B is correct because they are medial to white rami. However, C is incorrect as grey rami carry postganglionic fibers, not pre-ganglionic ones. D is right because the fibers are unmyelinated. So, the correct answer is C.
[2025-10-02T06:06:46.682057] [PI] Executing function call 1: hybrid_search
[2025-10-02T06:06:46.684652] [PI] Function arguments: {'query': 'grey rami communicantes carry postganglionic unmyelinated sympathetic fibers', 'k': 5, 'faiss_weight': 0.6, 'bm25_weight': 0.4, 'use_rrf': True}
[2025-10-02T06:06:46.686690] Saving JSON to bench_final/run1/medmcqa/medmcqa_3619/pi_iteration_1_tool_call_2_hybrid_search.json
[2025-10-02T06:06:48.018343] [PI] Function hybrid_search executed successfully
[2025-10-02T06:06:48.021541] Saving JSON to bench_final/run1/medmcqa/medmcqa_3619/pi_iteration_1_tool_result_2_hybrid_search.json
[2025-10-02T06:06:48.026991] [PI] Continuing reasoning with 1 function responses...
[2025-10-02T06:06:54.299478] [PI] Reasoning iteration 2
[2025-10-02T06:06:54.311159] [PI] No function calls found in response
[2025-10-02T06:06:54.312628] [PI] No more function calls - research complete
[2025-10-02T06:06:54.314293] Saving text to bench_final/run1/medmcqa/medmcqa_3619/pi_final_answer.txt
[2025-10-02T06:06:54.322602] [QUERYOME] Query completed successfully
