It contracts and relaxes!
Hope this helped u!!
The answer is Nuclear envelope.
Basically, the Nuclear envelope is an outer shell that protects the cell (which includes the dna) from any harmful things.
I believe it is D as it is a better answer than D because of the fact that the statement does not explein the age of her grandmother "old" is just drawing a conclusion off nothing, and it does not say that she does not like her at all , thus it is an incorrect statement . So the answer is D.
I believe for number 1 the answer is A 260
