If the sum and product of the roots of the equation $$ax^2 - 5x + c = 0$$ are equal to 10 each. then the value of a and c respectively are

A

$$\frac{1}{2}, 5$$

B

$$\frac{1}{2}, 3$$

C

$$\frac{3}{2}, 1$$

D

$$\frac{1}{3}, 2$$