Which of the following is not a testable hypothesis? a. Fertilizer A will make the KW variety green bean produce more beans.
b. Smart people like the same music.
c. Vitamin C relieves cold symptoms.
d. There is more than one species of African elephant.
hel

I'd say B

Explanation:

answer B doesn't have any way to define what actually counts as "smart", so you wouldn't be able to test it.

answer A, you could run an experiment with fertilizer A on some plants, and no fertilizer on another.

answer C, you could give vitamin C supplements to some subjects, but not to others.

answer D, you could research or study elephants, and see if you find more than one species.

it would lead to upper respiratory infections and pneumonia.

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