Answer: The heart pumps blood in the body.
Step-by-step explanation:
The denotative meaning of a word refers to it's unbiased meaning. It is the primary meaning or function of a word. This is opposed to a connotative meaning that sees feelings attached to a word such that it has another meaning from it's primary meaning.
The primary and unbiased function of the heart is to pump blood through the various blood vessels to the rest of the body. This is therefore the denotative meaning.