Does one use 'a' or 'an' before the word x-ray?

In which of the following would a person who works as a business administrator be interested? select all that apply. a. convincing someone to purchase a project b. planning employee work schedules c. typing memos and letters d. writing facts, procedures, and instructions e. working with clients as a fitness instructor unit 2 lesson 6 self-assessment unit test , me !