As the Tongue Develops Still Further,the Copula of the Tongue

Multiple Choice

As the tongue develops still further,the copula of the tongue base,after overgrowing the second branchial arch,merges with the anterior swellings of the first branchial arch of the tongue body,with the fusion is superficially demarcated by the:

A) sulcus terminalis.
B) tuberculum impar.
C) copula.
D) median lingual sulcus.