Evaluate the integral and select the most appropriate set of steps:

A) \int_0^5 \frac{1}{√{5-x}}dx
B) \int_0^5 \frac{1}{√{5-x}}dx = \lim_{a \to 5} \int_0^a \frac{1}{√{5-x}}dx
C) \int_0^5 \frac{1}{√{5-x}}dx = \lim_{a \to 5} \int_0^a \frac{1}{√{5-x}}dx = \lim_{a \to 5} \left[2√{5-x}\right]_0^a
D) \int_0^5 \frac{1}{√{5-x}}dx = \lim_{a \to 5} \left[2√{5-x}\right]_0^a = \lim_{a \to 5} \left[2√{5-a} - 2√{5}\right]