Which of the Following Statements Is False

Which of the following statements is false?

A) All bird embryos have webbed feet, although some adult birds do not.
B) Bone morphogenetic protein 4 (BMP4) directs cells in the foot webbing of bird embryos to undergo apoptosis.
C) The protein Gremlin inhibits BMP4 protein from signaling for apoptosis, causing webbed feet.
D) The gene Gremlin is expressed in the webbing of both chicken and duck embryos.
E) Adding the protein Gremlin to a developing chicken foot will cause the foot to resemble that of a duck.