A. Supervised learning feeds a large corpus of raw data into the Al system, while unsupervised learning uses labeled data to teach the Al system what output is expected.

B. Supervised learning is common for fine tuning and customization, while unsupervised learning is common for base model training.

C. Supervised learning uses labeled data to teach the Al system what output is expected, while unsupervised learning feeds a large corpus of raw data into the Al system, which determines the appropriate weights in its neural network.

D. Supervised learning is common for base model training, while unsupervised learning is common for fine tuning and customization.