4, 5, 6, hope that helps.
This is a very big guest I think A
The best answer here is the last one, that he interacts easily with both his superiors and the drivers. In the excerpt, we see how the narrator is able to talk with the officers with ease and then how he goes to the drivers with that same ease.
If we look at the other answers, we can see that they don't work. The first one doesn't make much sense as the narrator shows no preference towards either set of people. The second choice makes no sense because the narrator does not ask the officers for cigarettes. The third choice also does not make sense because there is no hint of derision from the narrator to the officers or drivers.
When it is a linking verb, it contains a adjective right after the main verb (is/feel/were/was) and must express the person.
Example: I feel sad.
"Feel" is the main verb in this sentence and it is expressing ones emotion. So if that is the verb, then "sad" is the adjective. Because of this example, you can see that
"Were" in the sentence is the main verb and after those are the adjectives ( tired and dirty). Therefore, you just found a linking verb.
Then answer would be (A)
EMJOY!!