For Most Metazoans, What is the Name of the Outermost

Question

For most metazoans, what is the name of the outermost tissue layer during development?
A) ectoderm
B) endoderm
C) mesoderm

Accepted Answer

The ectoderm is the outermost tissue layer in the development of most metazoans, giving rise to the nervous system and the epidermis among other structures.