The First Cloned Cat, Called Carbon Copy, Was a Calico

Multiple Choice

The first cloned cat, called Carbon Copy, was a calico, but she looked significantly different from her female parent. Which of the following best explains the reason for the differences?

A) The cloning was done poorly and some contaminating cat DNA became part of Carbon Copy's genome.
B) Fur color genes in cats are determined by differential acetylation patterns that reset when cloned.
C) Cloned animals have been found to have a higher frequency of transposon activation.
D) X chromosome inactivation in the embryo is random and produces different patterns.