Lionel thinks he wants to be a fireman, but he is not sure. He is working with his high school career counselor to get information about careers and college majors before he makes a decision.

C. Moratorium

Explanation:

James Marcia extending the work of Erik Erickson of psychological identity development and stated four identity statuses that are mentioned below:

Identity Diffusion Identity Foreclosure Identity Moratorium Identity Achievement

Identity moratorium is a stage when children explore their interests and ready to make choices but they are not sure about the commitment to their choices. They are still in a state of crisis and have not reached the stage of decision making.