Adjective clauses usually start with words like who, which,where and why.I think the sentence you are looking for is A. Adjective clause being "which many people love".
The sentence that contains an adjective clause is: A. Pizza, which many people love, can also be nutritious. An adjective clause is a group of words that contain a subject and a verb, and it provides more information about a noun. In this sentence, 'which many people love' is the adjective clause because it provides additional information about 'pizza'. The clause modifies the noun 'pizza', indicating it is something many people love and acting as an adjective in the sentence.
Examples of adjective phrases in a similar context are:
'An affordable car' where 'affordable' modifies the noun 'car'.
'A more reliable car' where the adjective 'reliable' is modified by the comparative word 'more', forming the adjective phrase that modifies the noun 'car'.
The sentence that contains an adjective clause is option A: 'Pizza, which many people love, can also be nutritious.' The adjective clause 'which many people love' provides additional information about the noun 'pizza.' The other options do not include adjective clauses.
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