The main clause among the following sentence is the veterinarian knew. The correct option is B.
The main clause of a sentence is the subject and predicate, which express the meaning of the sentence clearly.
To find the main clause, the verb and the subject of the sentence.
Thus, the correct option is B. The veterinarian knew.
Learn more about the main clause
https://brainly.com/question/19711531
#SPJ2
