Refer to the figure below. Which of the following is true?

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Refer to the figure below. Which of the following is true?

A.Points B, C, E and F are efficient.

B.Point A is efficient because it is farthest from the origin.

C.Point D is efficient because it requires using the fewest resources.

D.Point F is the most efficient because medical care is the highest there.

正确答案:Points B, C, E and F are efficient.

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