Identify the sentence in which the underlined clause is a noun clause that functions as the object of a preposition these experts say that the best time to begin a dog straining as when the dog is still a puppy veteran trainers offer a great deal of love and discipline to whatever dogs they train these experts say the best time to begin a dog's training as when the dog is still a puppy whoever trains a dog should have experience

b. Veteran trainers offer a great deal of love and discipline to whatever dogs they train.

Explanation:

The noun clause "whatever dogs they train" is the object of the preposition to.

a. These experts say that the best time to begin a dog’s training is when the dog is still a puppy.

This is a noun clause that functions as a predicate nominative.

c. These experts say that the best time to begin a dog’s training is when the dog is still a puppy.

This is a noun clause that functions as a direct object.

d. Whoever trains a dog should have experience.

This is a noun clause that functions as a subject.  

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