Definition: Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
Input: How many receptors on a helper T cell must be bound to a helper T cell I mean MHC:antigen complex in order for the cell to be activated?

How many receptors on a helper T cell must be bound to a MHC:antigen complex in order for the cell to be activated?