Which Primate Trait is Least Important for Arboreal Life

Question

Which primate trait is least important for arboreal life?
A)Reduced reproductive rates
B)Complex brains
C)Binocular vision
D)Mobile limbs
E)Bipedalism

Accepted Answer

Bipedalism is standing erect and walking on two feet as humans do.Most primates,particularly the arboreal ones,are quadrupedal: They walk on all fours.