The correct answer is D.
The teacher clearly dislikes his students; he describes their work as slovenly and says that he is sick and tired of dealing with them.
He explains that he will not take the last of his energy and waste it on them, since they are so indifferent. While he does not like them, he does not yet hate them. He says if he were to give them the last of his energy, however, he would end up hating them. For now, though, he just dislikes them and waits for the bell.
The conventional rule is to take the plural form of the verb when two nouns are joined by the conjunction 'and'. However, there are exceptions. Only then can you break the rule.
When the two nouns refer to one thing only, then you can use the single form. For example: The president and the CEO joins the meeting today. In this example, the president and CEO apply to one person only. Hence, you use the singular form of the verb.
To do I think I hope this helps
Answer:
I agree. Because failing you can see and recognize your mistakes, and take care in the next time to don't take them again