Why did Elizabeth Clare and her team use a group of naked mole rats that had been in one room for many generations in their study?

Question

a
The DNA would have built up in the air during the time they had been there.
b
The DNA would have spread out and been more difficult to obtain.
c
Naked mole rats are special because they do not have DNA.

Answer 1

The likely reason Elizabeth Clare and her team used a group of naked mole rats that had been in one room for many generations is:

b. The DNA would have spread out and been more difficult to obtain.

Using a confined group of the same species that have been together for generations can help control for genetic diversity and allows for easier sampling and study of their DNA.