According to a 1996 survey by the National Association of College and University Business Officers, more than three times as man
y independent institutions of higher education charge tuition and fees of under $8,000 a year than those that charge over $16,000. than those that charge
Explanation: The question is very clear, the biggest problem in the question is the (very cleverly disguised) idiom "as many... as". We use the phrase "as many... as" very frequently in the usage of a normal language, so the right answer to the explanation is as charged.
In this Sentence Correction question, we need to follow parallelism rules to get the correct answer.
The phrase "as many" in the question must be followed by "as"; and this appears in all 5 answer options, so it's not much help. However, the first "as" is partnered with "charge" ("as many independent institutions of higher education charge...."), the second "as" definitely needs it too.
The only answer that follows this pattern is option D
