The correct option is A Have applied
The subject of the sentence is “I.” This suggests that either the subject is doing the action or some action is being done on them. The phrase “for a new job” suggests that the action is related to searching of or applying for new job. Our assumption gets confirmed by the fact that all the answer choices have “apply” as the verb. If we take the subject, and the verb together, we can understand that the action of applying would be done by the subject, “I.” Hence, the sentence is in active voice as the subject, i.e. “I”, is doing the action, i.e. applying. Also, we can understand that the action has already happened. So, the sentence is in present perfect tense. The present perfect is made using the auxiliary verb 'have/ has' plus the 'past participle' of the main verb. Also, in case of passive voice, “been” is used with “have.” The option that incorporates all these elements is the correct answer. Hence, Option A is the correct answer as it uses “have” indicating the active voice of the sentence and past participle of the verb “apply,” i.e. “applied” as required by the present perfect tense of the sentence.
Option B cannot be used as the sentence is not in passive voice and the presence of “been” from the option indicates that only.
Options C and D cannot be used as the verbs are not in agreement with present perfect tense of the sentence.