Deep learning and reinforcement learning can be:

A. supervised only.
B. unsupervised only.
C. either supervised or unsupervised.

Correct Answer: C

Supervised machine learning: The program is “trained” on a pre-defined set of “training examples”, which then facilitate its ability to reach an accurate conclusion when given new data.

Unsupervised machine learning: The program is given a bunch of data and must find patterns and relationships therein.