I believe it's A. If an organism changes and evolves slowly over time it is caused by variation, which helps the species adapt to it's habitat and way of life
Well reading the excerpt i would say that No she did not die according to her wishes:
It says she wished to die as home but yet she still died at a skilled nursing facility so no they did not respect her wishes to die at home
It’s frustrating because Winston wants to have those relations with people who are younger and attractive, such as Julia, but his desperation forced him to settle for someone that was completely unattractive to him, which made him frustrated.
I think it’s A. The plasma membrane