Final answer:
The adjectives in the given sentence are 'nervous,' 'upcoming,' 'successful,' and 'several,' making option (b) the correct answer as it lists these four adjectives.
Step-by-step explanation:
The adjectives in the sentence “He was nervous about the upcoming play, but several successful rehearsals gave him confidence” are nervous, upcoming, successful, and several. Option (b) nervous, successful, several, upcoming is the correct answer. Adjectives are words that describe or modify nouns or pronouns by giving some information about an object’s size, shape, age, color, origin or material. In this sentence, 'nervous' describes how he felt, 'upcoming' refers to something happening in the future, 'successful' describes the kind of rehearsals they were, and 'several' indicates an amount of rehearsals.