I believe the answer should be "Instead" because it is a conjuctive adverb
The answer to what exactly
Sentence B is present tense. Sentence A is referring to that she has already worked and is past tense. Sentence C is referring to that she is going to be working, which is future tense. Sentence B is the only sentence that seems to follow present tense.
martin luther was a great man in the past he helped millions of people including me go to proper school. he is an over achiving man with a famouse speech called i have a dream.he has four children. he died as an insparation and a hero.
