I would say driver, as the other ones work from offices and desks
1 d
2 b
3 b
4 none of them, it is future perfect progressive.
Limited omniscient is the correct answer. With limited omniscient, the narrator knows everything - about one character. Their knowledge is limited. Omniscient narrators know everything about all characters. First person, rather than seeming like a close friend or confidant, makes it seem like we are in the narrator’s head.
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You have to compare to teacher to something else like: "My teacher is as sneaky as a fox" ; Something like that.