The first one, cause their trying to make it a positive way to reinforce. Which just means their trying to fix something again
The answer is A or the first one
A heterozygous cat has a genotype Hh
A hairless cat has a genotype hh
When crossed, the results could be any of the following:
Hh (with hair)
hh (hairless)
There is a 50:50 chance or 1: 1 ratio that the offspring will have hair.