The author regards the idea that differentiation is triggered randomly when paired claws remain intact as _____.

A. irrefutable considering the authoritative nature of Emma's observations
B. likely in view of present evidence
C. contradictory to conventional thinking on lobster-claw differentiation
D. purely speculative because it is based on scattered research and experimentation
A. irrefutable considering the authoritative nature of Emma's observations
B. likely in view of present evidence
C. contradictory to conventional thinking on lobster-claw differentiation
D. purely speculative because it is based on scattered research and experimentation

【答案】