C. a Y chromosome from his father
This is because boys have one X and one Y chromosome, while girls have 2 X's, so the Y must come from the father.
Hope this helps :D
I would consider the answer to be C. the cats would have more knowledge about how to get out the box so when it gets back in it knows how to get out
Coastal at the temperate latitude, basically the deeper you go, the colder it is...excluding the sulfer volcanoes but I don't think those apply