Question

Ancient hunter-gatherers developed instincts that stigmatized selfishness, and voluntary cooperation was encouraged as well, whether it be within the group or also with outsiders.

• A. selfishness, and voluntary cooperation was encouraged as well, whether it be within the group or
• B. selfishness, encouraging voluntary cooperation as well, both within the group but
• C. selfishness and also encouraging voluntary cooperation, within the group and
• D. selfishness and they encouraged voluntary cooperation, whether it be within the group or
• E. selfishness and encouraged voluntary cooperation, not only within the group but
  

Answer 1

The correct option is E selfishness and encouraged voluntary cooperation, not only within the group but


The correct choice asks for parallelism between verb forms "stigmatized & encouraged"
(A)The sentence wrongly uses passive voice for the second part...also it is not clear that what"It" refers to.
(B) Wrong use of gerund..
(C) Verbs are not parallel
(D) "It" does not have clear reference
(E) Best choice