How is the domain of a trigonometric function restricted so that its inverse function is defined?

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The graph of f(x)=tan(x) .

a. is one-to-one

b. does not pass the horizontal line test

c. does not pass the vertical line test

Therefore, a domain restriction must be placed on the function for the inverse function to be defined. The domain restriction placed on f(x)=tan(x) is so that its inverse function is defined.

a. (-pi/2, pi/2)

b. (0, pi/2)

c. (0, pi)

d. [-pi/2, pi/2]

e. [0, pi/2]

f. [0, pi]