The correct answer is:
B. es
Explanation:
1. In the sentence "El señor Ruiz es un hombre muy inteligente y simpático," the verb "es" (meaning "is" in English) is used to describe a permanent or inherent quality of Mr. Ruiz.
2. The verb "es" is used with the subject pronoun "él" (he) to indicate a characteristic or attribute that defines him as intelligent and friendly.
3. This verb form corresponds to the present tense in Spanish, which is appropriate for describing someone's traits or characteristics that are considered constant or lasting.
