Answer: D

Reasoning: The greater bulk and wider occlusal table of large denture teeth transmit higher biting forces and create longer leverage arms, concentrating stress on the underlying acrylic base and supporting tissues; photo-elastic and finite-element studies show that reducing tooth size/occlusal width lowers these stresses, whereas larger posterior teeth overload the base [Shibuya, 1975, PMID 776432; Lopuck, 1978, PMID 277680].