Refer to the Figure of the Cellular Slime Mold Dictyostelium

Multiple Choice

Refer to the figure of the cellular slime mold Dictyostelium. What is occurring at arrows 1 and 3?

A) At arrow 1 spores have been released, and at arrow 3 spores have germinated and have grown into a fruiting body.
B) At arrow 1 a single large spore has been released, and at arrow 3 a plasmodium has formed.
C) At arrow 1 feeding amoebas have run out of food, and at arrow 3 aggregated amoebas have formed a mobile slug.
D) At arrow 1 a large amoeba has hatched from the spore case, and at arrow 3 the amoeba has become mobile.
E) At arrow 1 a feeding amoeba has begun searching for food, and at arrow 3 the amoeba has run out of food and started forming a fruiting body.