Which of the following sets has the same standard deviation as the set that contains k, k + 2, and 2k?

A. k-2, -2, 0

B. 2k, 2k + 4, 4k

C. 1, 2, k

D. k, k-1, k-2

E. k/2, k, 2

[spoiler]**A.**[/spoiler]

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Which of the following sets has the same standard deviation as the set that contains k, k + 2, and 2k?

A. k-2, -2, 0

B. 2k, 2k + 4, 4k

C. 1, 2, k

D. k, k-1, k-2

E. k/2, k, 2

[spoiler]**A.**[/spoiler]