This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to socialize your kitten
Begin socializing your kitten as soon as its eyes open.
Although kittens are blind and deaf for the first few weeks of life, they'll soon start paying attention to their surroundings. Once the kitten's eyes open, you can start to touch and interact with it.

pick from the following.
(a). Gently start threading your fingers through your kitten's fur so it gets used to your hands. Coax your kitten into your arms.
(b). Gently stroke it, pet it, and talk to it, brushing its fur gently. Kittens can start to learn to only communicate by touch.
(c). This usually happens when the kitten is around 2 weeks old. If the mother cat trusts you, you should be able to touch the kittens starting when they're 3 days old.
(d). Start by petting or holding it gently so it associates touch with you being near it. Give it a treat and try to let it sniff you as you touch it.
The answer is:
(c).