Answer:
d.
Explanation:
Based on the scenario being described within the question it can be said that this tissue would most likely come from tissue that separates skin from underlying muscle. Also known as the superficial fascia, this is the main coating beneath the skin that is mainly made up of different amount of fat, which also surrounds the bodies organs.
When we're doing scientific research, we should definitely be avoiding any sources which aren't scientific by nature. This means we should avoid sources which haven't been peer reviewed by fellow authors of a similar field. With this, we avoid using literature of questionable quality.
I think it’s DNA replication if i’m not mistaken