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Sentence Correction: Comparative Questions – Overview

In the design process, functionality is as important as originality is, and this concept is being taught by design schools throughout the world.

This answer choice is stylistically flawed. Using the passive form (is being taught) creates redundancy. Since there is another grammatically correct answer choice that does not use the passive form, it is preferable to this one.

Good!

This answer choice eliminates the original Stylistic error by changing the sentence from passive to active. It also includes a verb in the second half of the Comparative structure.

This answer choice repeats the original Stylistic flaw. Using the passive form (is being taught) creates redundancy. Since there is another grammatically correct answer choice that does not use the passive form, it is preferable to this one.

Although this answer choice eliminates the original Stylistic error by changing the sentence from passive to active, it is illogical and grammatically incorrect. As cannot be complemented by than because as indicates a similarity or equality between the two things compared whereas than indicates a difference between them. 

What helps us identify this question as a Comparative question as well as identify the mistake is the following Stop Sign:

Like, unlike, than, as

Although this answer choice eliminates the original Stylistic error by changing the sentence from passive to active, it is stylistically flawed as it omits the verb is from the second half of the Comparative structure. 

Since there's another answer choice that corrects the original mistake but preserves the verb is, it is preferable to this one. Look for it!

as originality is, and this concept is being taught by design schools throughout the world
as originality is, and throughout the world, this concept is being taught by design schools
as originality, and design schools teach this concept throughout the world
as originality is, and throughout the world design schools teach this concept
than originality is, and throughout the world design schools teach this concept