Pairbonded groups and active defense of territories are typi

Pair-bonded groups and active defense of territories are typical of the
   a. lorises.
   b. monkeys.
   c. great apes.
   d. lesser apes.

Solution

d. lesser apes

The lesser apes for example gibbons are known to pair- bond and are strongly territorial. They actively defend their territory with vigorous visual as well as vocal display.