Mutations occur all over our body consistently since all of our cells contain DNA. Some mutations would not be passed on to offspring and they don't matter for Evolution. "Somatic Mutations" are mutations that occur in the cells that do not form gametes and do not end up carried by the sperm or eggs. Such mutations could be in your skin, muscles, liver, ect.
Answer:
D. Parenthetical or A. Informational
Explanation:
A nonrestrictive clause (also known as a nonessential clause) is a type of adjective clause that provides additional information about a word whose meaning is already clear. A nonrestrictive clause often begins with the word which and are always set off with commas.
P.S (its either A or D either one is right but D makes the most sense) Hope this helps you :)