If Antibodies That Neutralize Fibronectin Are Incubated with an Embryo

Multiple Choice

If antibodies that neutralize fibronectin are incubated with an embryo through which neural crest cells are migrating, what happens?

A) Neural crest cell movements are inhibited.
B) Neural crest cell movements are excited.
C) Neural crest cells die.
D) Neural crest cells divide.
E) Neural crest cells convert into muscle cells.