For each of the following tasks, identify which type of learning is involved (supervised, reinforcement, or unsupervised) and the training data to be used. If a task can fit more than one type, explain how and describe the training data for each type. (a) Recommending a book to a user in an online bookstore (b) Playing tic-tac-toe

(c) Categorizing movies into different types

(d) Learning to play music

(e) Credit limit: Deciding the maximum allowed debt for each bank customer