Which of the following is the correct way to say "I am" in Latin in the present tense?

The phrase "I am" in Latin is expressed as "sum." This is the first-person singular form of the verb "esse," which means "to be." In Latin, verbs conjugate based on the subject, so "sum" specifically indicates that the subject is "I."

The other choices represent forms of the verb "esse" as well, but they correspond to different subjects. "Es" is the second-person singular form, meaning "you are," while "sumus" is the first-person plural form, indicating "we are." "Esse" is the infinitive form of the verb, meaning "to be," and is used in different grammatical constructions but is not the correct form for stating "I am." Therefore, "sum" is the appropriate choice for expressing "I am" in the present tense in Latin.