Select from options: How similar are the following two sentences?

A man is playing the guitar and singing.
A man is playing the guitar.

Give the answer on a scale from 0 - 5, where 0 is "not similar at all" and 5 is "means the same thing".

Choices: a. 0. b. 1. c. 2. d. 3. e. 4. f. 5.
d.