Determine if the Mean Value Theorem for Integrals applies to the function f of x equals the square root of x minus 1 on the interval [1, 5]. If so, find the x-coordinates of the point(s) guaranteed to exist by the theorem.

Yes, x equals one half.
Yes, x equals 4 over 3.
Yes, x equals 25 over 9.
No, the theorem does not apply.

I put b and got it wrong