Answer: C) Scarcely; today.
Explanation: an adverb is a word or phrase that modifies or qualifies an adjective, verb, or other adverb or a word group, expressing a relation of place, time, circumstance, manner, cause, degree, etc. In the given sentence we can see two examples of adverbs, the first one is "scarcely" which is modifying the verb "has eaten" and is showing degree, and the second one is "today" that is showing time.