system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
T cells mature in:March 2012
assistant
The correct answer is  Ans: C i.e. ThymusImmunologically incompetent cells which go to the thymus are "preprocessed" there (thymus) and become T cells. The letter T comes from the word thymus.