What is unrelated in this paragraph that can be eliminated?
a trip to the ocean can be a relaxing escape from the everyday pressures of life.
a sailboat glistening on the horizon provides a mental escape to faraway places. the rhythm of the ocean beating against the sand is sedating music to a troubled mind. a slow, gentle breeze can relax your tensions. you should always be careful to avoid overexposure to the sun at the beach.

i think the correct answer would be adjustments in life roles.  this causes for one to adjust or change totally his/her career or lifestyle since the present is not beneficial to the life role he is at. for instance, you became a mother you would of course stop going to malls and enjoying life outside. you would be staying at home taking care of your child.

the answer is:

when will (v) the books (n) be (v) due?

nouns refer to people (other than pronouns), places and things, whereas verbs describe actions and are usually part of the predicate of a sentence. finally, pronouns can work as nouns and identify the participants in speech.

in the example sentence, "will" is a verb part or auxiliary verb, "be" is an infinitive verb and "books" is a plural noun.