The passage is primarily concerned with _____.

A. drawing an analogy between asymmetry in lobsters and handedness in humans
B. developing a method for predicating whether crusher claws in lobster will appear on the left or right side
C. explaining differences between lobsters’ crusher claws and cutter claws
D. discussing a possible explanation for the way bilateral asymmetry is determined in lobsters
A. drawing an analogy between asymmetry in lobsters and handedness in humans
B. developing a method for predicating whether crusher claws in lobster will appear on the left or right side
C. explaining differences between lobsters’ crusher claws and cutter claws
D. discussing a possible explanation for the way bilateral asymmetry is determined in lobsters

【答案】