Which Result Did Hans Spemann and Hilde Mangold Get When

Multiple Choice

Which result did Hans Spemann and Hilde Mangold get when they transplanted the dorsal lip of the blastopore of an early amphibian gastrula to the belly region of another early gastrula?

A) The transplanted tissue was rejected.
B) The recipient of the transplant died.
C) A second site of gastrulation was stimulated, but that embryo died.
D) A secondary embryo formed belly-to-belly with the first embryo.
E) The transplanted tissue passed through gastrulation only to form an incomplete embryo.