3. For the formation of vertebrate limb, which of the followingstatement is NOT TRUE?
(A) Pattern formation is the process governing the arrangementof organs and tissues in their characteristic 3-D space
(B) Pattern formation requires each embryonic cell to receivesome kind of positional information indicating locationalong three axes of the limb
(C) The wings and legs of chicks begins with limb budconsisting of only ectoderm
(D) The apical ectodermic ridge (AER) secrets FGF (fibroblastgrowth factor) that promotes distal-proximal limb budoutgrowth.