Doctoral student is studying the genetic make up of a species of jellyfish that occurs at low middle and high latitude regions of the pacific ocean on an ocean graphic expedition she collects specimens of the jelly fish throughout its range. Upon returning to the laboratory at the University and assistant places all of the jellyfish and aquarium with an average temperature of approximately 20 C. After a few days he notes that almost 2/3 of the jellyfish have died using the figure below how would you explain which jellyfish likely make up the bulk of the survivors and what the mistake was.
A. The survivors were likely collected from the dark gray areas on the map those from other regions could not adapt
B. The survivors were likely collected from the light gray areas of the map those from the other regions cannot adapt
C. The survivors were likely from the black areas of the map but had the most advantageous genes of those collected
D. The survivors were likely from the black areas of the map adapted to difference in the temperature in the laboratory.