A  

A 3.5 cm oral tongue lesion exceeds 2 cm but is ≤4 cm, and there is no clinical node or distant disease (N0 M0). Under AJCC 8th‐edition rules, such tumors are classified as T2 provided depth of invasion is ≤10 mm; deeper lesions or those >4 cm would be T3 or higher. Therefore, the stage is T2 N0 M0 [Almangush 2018, PMID 30039390].