Teacher:In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.
Teacher: Now, understand the problem? Solve this instance: Sentence: After an infection has been brought under control and most cytotoxic t cells die off, a few remain as memory cells. Question: After an infection has been brought under control and most cytotoxic t cells die off, a few remain as what?
Student:
memory cells