Our dreams are important steps to have such dreams and nightmares, they infect our sleep and such also our lives.
(sorry i tried i'm not good at this)
I personally would say A. Since it grabs your attention and you think it may be heading elsewhere so you want to read it.
The answer is A. Although Vladimir Nabokov studies zoology during his first term, he eventually shifts to French and Russian literature in Cambridge. He graduates in this field with first-class honors and continues to write poems in Russian and English.