<u>Answer:</u>
<em>It is important to read good books </em><u><em>that have good plots. (A)</em></u>
<em></em>
<u>Explanation:</u>
The blank in the sentence is thus filled aptly by ‘that have good plots’. This is because it is grammatically correct and acceptable. A book is an object and thus the word the adjective ‘that’ goes with it. "That" is used for referring an object, person or an idea. It involves something which is already known of like books with good plots are known to people.
Their would be your second one
Assumptions are practically guesses. You presume (or guess) what is going to happen or what did happen. View points, on the other hand, are things that have already happened, and you have made up your mind on your stance of the thing. i would go with D)
To see how someone see’s you or how they feel about u