Which answer choice is a sentence fragment? Froglets look more like frogs than tadpoles do.

Finally, the adult frog loses its tail.

Legs for hopping and lungs for breathing air.

After egg and tadpole, froglet is the third stage.

Legs for hopping and lungs for breating air

Explanation:

Although the third sentence looks like it would be the answer, it's still a sentence. The fourth one is the answer because if doesn't have a starter nor does it have context.

Legs for hopping and lungs for breathing air.

Explanation:

A sentence fragment is a group of words that resembles a sentence. It will start with a capital letter and have ending punctuation; however, it is neither an independent clause nor a complete idea.

faulty parallelism is a construction in which two or more parts of a sentence are equivalent in meaning but not grammatically similar in form.

the correct version of this faulty parallelism in the sentence is:

the hikers knew that the hike was six miles, that it usually required the entire day, and it would not be wise to start after 10: 00 a.m.

the problem is the last sentence, the first two have a basic subject+verb+object structure.

so, to give a proper balance to the structure, or better said, to give a parallel structure, we must write a basic s+v+o structure in all three sentences:

the hikers knew that the hike was six miles, that it usually required the entire day, and it would not be wise to start after 10: 00 a.m.

(the answer is d)

hope this !