Mapping out the relationship between shared bone structures across different species suggests that there is a(n) ____ explanation

Children as young as age 2 display

A) a sophisticated understanding of role relationships and story lines. B) awareness that make-believe is a representational activity. C) the ability to flexibly understand that an object may take on multiple fictional identities. D) advanced forms of sociodramatic play without adult prompting.

The article At a Loss for Words, about a teenager (E. M.) who was profoundly deaf in early life concluded that:

(a) there is no sensitive period for language development (b) there is a sensitive period for language development but with hard work, any language can be acquired even after long deprivation (c) there seems to be a sensitive period for language development (d) there is a sensitive period for hearing, but not for speaking