C.Natural Selection would be the answer
<span>284 km in 2 million years.</span>
I would guess giant pandas because they aren't referring to a regular panda. giant pandas are a type of panda that live in Asia. then there are other types too. my second guess would be humans just because there are no other "species" or type of human but the pure form of human.
1st.
It is closest to the positively charged nucleus which attracts the negatively charged electron with the attractive force being inversely proportional to distance.
