Explanations:The question tests the correct usage of verb tenses in English, specifically the present continuous tense and the present simple tense. The sentence "Abhishek ..... (be+go) to Bengaluru to meet his friend who ..... (be) an IAS officer" requires the appropriate tense to describe the actions and states involved.
The present continuous tense is used to describe actions that are happening now or are planned in the near future. It is formed with the auxiliary verb "be" (is, am, are) and the present participle of the main verb (going). In the sentence, "Abhishek is going to Bengaluru" indicates a planned action in the near future. This is the correct usage because the action of going to Bengaluru is a future event that is planned and likely to happen soon.
The present simple tense is used to describe permanent states or habitual actions. It is formed with the base form of the verb (is). In the sentence, "his friend is an IAS officer" describes a permanent state or a current job title. This is the correct usage because being an IAS officer is a permanent state that does not change frequently.
Option A, "Is going, is," is the correct answer because it correctly uses the present continuous tense for the planned action and the present simple tense for the permanent state. The other options are incorrect because they either use the wrong tense for the context or do not match the required tenses for the actions and states described in the sentence.