Apopulation of black cat has been interbreeding however in one litter a sole gray kitten is born the successive generations now have a few gray cat witch mutualism is responsible for introducing its new allele and the cat population

Explanation:A population of black cats has been interbreeding. However, in one litter, a sole gray kitten is born. The successive generations now have a few gray cats. Which mechanism is responsible for introducing this new allele in the cat population?

The Question, these are the answers I need help.

A.  

Gene selection

B.  

Gene mutation

C.  

Gene flow

D.  

Genetic drift

because  I do not know help.

all answers true and false

explanation:

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.