Stephen Emlen Demonstrated That Young Indigo Buntings (Passerine Cyanea) Have

Multiple Choice

Stephen Emlen demonstrated that young indigo buntings (Passerine cyanea) have to learn where north is rather than being born with that information already programmed. He did that by having birds that would orient appropriately relative to the center of star rotation even though they had been reared in a planetarium with

A) the dome diffusely lit.
B) the stars held stationary relative to Polaris.
C) the stars in retrograde relative to Vega.
D) the stars rotating around Betelgeuse.