Which of the Following Points Support the Theory That Gestural

Multiple Choice

Which of the following points support the theory that gestural language preceded the evolution of speech?

A) children who are bilingual in speech and sign generally are more advanced in speech
B) it is generally believed that hominid brain size increased long before the human vocal tract evolved
C) children deprived of a language model invent spoken languages more readily than signed languages
D) present-day humans still use gesture to accompany speech