Let u = (7, -4) and v = (-2, 5). Find the component form and magnitude of the vector (8/17)u + (15/17)v. Which of the following options correctly completes the question?

a. (8/17)u + (15/17)v = [type answer]
b. The magnitude of (8/17)u + (15/17)v is [type answer]
c. The component form of (8/17)u + (15/17)v is [type answer]
d. The length of (8/17)u + (15/17)v is [type answer]