According to a 1996 survey by the national association of college and university business officers, more than three times as many independent institutions of higher education charge tuition and fees of under $8,000 a year than those that charge over $16,000.
(a) than those that charge
(b) than are charging
(c) than to charge
(d) as charge
(e) as those charging

(A) than those that charge

Explanation:

According to my research on correct English grammar, I can say that based on the information provided within the question the correct statement would be "than those that charge". The other statements are all grammatically incorrect and would not make sense if added to the statement in the question.

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levels of production can be increased by technology while holding labor and capital constant, because increased technology makes the production process more efficient. subsequently, the lras curve is almost a vertical line, that can shift to the right, with an increase in technology.

the relationship between the lras curve and the ppc is that both can make the economy could grow. the ppc achieves that when it shifts outward because of more resources or technological advances while the lras curve shifts if more resources are developed or if there are technological advances.

the lras curve is a vertical line at an output level that represents the number of goods and services a nation can produce over a sustained period using all of its productive resources as efficiently as possible with all of the current technology available to it.

the production possibilities frontier (ppf) is a graphical device that is used for economic analysis of production decisions because the ppf measures the maximum possible combinations of two goods that an economy is capable of producing with its currently available resources and technology.