Hello. Your question is incomplete, which makes it impossible for it to be answered. However, I will try to help you in the best possible way.
If the word, to which your question refers, is capable of foreshadowing something, it means that that word is advancing very important information about the plot in a subjunctive way, with the aim of promoting anxiety in the reader, stimulating curiosity, which will keep and will optimize reading.
I would go with d or a as my best guess
Answer:
The author supports his argument with a claim that a 16 year old's brain needs more time to develop. He also includes an opposing claim that a person's brain at 16 years old is mature enough to vote.
Explanation:
I think maybe nerve system.. hope this helps
