Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

A: Artificial Neural Networks are the backbone of deep learning algorithms.

R: Back propagation is one of the techniques used to train an ANN.

Choose the most appropriate answer from the options given below:

Assertion A is correct because deep learning is mainly based on artificial neural networks.

Reason R is also correct because back propagation is commonly used to train artificial neural networks.

But R does not directly explain why ANN is the backbone of deep learning.

Correct option is:

$\boxed{(b)\ \text{Both A and R are correct but R is NOT the correct explanation of A}}$