Answer:
See below
Explanation:
There are several reasons that genetic variation occurs. Some of them are as follows: mutation, random fertilization, recombination event during meiosis etc. The way in which this variation in genetics is distributed is in a continuous way. In case of the human species, it is reported that 85% of all variation is within a certain population, while the remaining 15% of genetic variation is between populations.
A comet. It’s a smaller celestial body that’s composed of mainly ice and dust.
For me i’ll say the answer is A bit i might be wrong so do what’s best for you