Which Statement About Frog Eggs Is True

Multiple Choice

Which statement about frog eggs is true?

A) Sperm-binding sites occur uniformly over the surface of the egg.
B) Microtubules organized by the sperm's centriole guide movements of cortical cytoplasm.
C) The gray crescent is a band of the most darkly pigmented cytoplasm in a fertilized frog egg.
D) Inner cytoplasm rotates, relative to cortical cytoplasm, toward the site of sperm entry.
E) The gray crescent marks the location of sperm entry.