Answer:
The letter B is the correct option.
Step-by-step explanation:
Mixed metaphor is the term used to describe a situation where a sentence has two metaphors, creating an inconsistent combination, with little coherence or relationship between one metaphor and another.
The phrase "The painting will teach your mind to play by ear" is an example of a phrase that has two metaphors that do not express any relationship and leave the phrase totally inconsistent. This is because the metaphor "eye of the mind" already has an absurd concept, this absurd concept is elevated, when the term says that the "eye of the mind" will be taught to touch "the ear".