Question

Unlike a hurricane, which can be observed from within, a tornado is so small that such a study has not been practical.

(A) that such a study has not been practical

(B) that studying it that way has not been impractical

(C) for such studies as this to have been impractical

(D) as to not make such a study practical

(E) as to be impractical of study

Answer 1

Option A, 'that such a study has not been practical,' is the correct choice as it maintains the structural and meaning accuracy in the sentence comparing the study of hurricanes and tornadoes.

Step-by-step explanation:

The question being asked compares the observational difficulties of studying hurricanes versus tornadoes. The correct way to complete the sentence, 'Unlike a hurricane, which can be observed from within, a tornado is so small that such a study has not been practical.' is with the provided option A, which states 'that such a study has not been practical'. This phrase correctly maintains the parallel structure and meaning of the sentence, which contrasts the practicality of studying hurricanes versus tornadoes due to their size differences.