Answer: The answer is A: master rules of syntax
Explanation: Primates refer to group of mammals that have large brain when compared with their body weight. These groups of mammals include monkeys, lemur, apes, tarsiers, humans and so on. These mammals are good in climbing as a result of their strong arms and legs. Thus, as a result of their large brain, primates can easily learn sign language, create simple sentences, and comprehend spoken words
Master rules of syntax are set of rules that govern how sentences are structured.
