A Medical Student Playing Softball Chased the Ball Through a Field

Multiple Choice

A medical student playing softball chased the ball through a field populated with patches of poison ivy. The student's skin came in contact with the poisonous plant. Which of the following cells processes and presents the plant antigen to initiate the immune response of the skin?

A) T helper cell
B) cytotoxic T lymphocyte
C) plasma cell
D) Langerhans cell
E) T reg cell