Please answer the following question: Cheryl Martin - Cheryl Martin is an American chemist and currently the Acting Director for the Advanced Research Projects Agency - Energy (ARPA-E) a United States Department of Energy initiative. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
Answer:
Office Holder