Find the correct prime factorization of \(\frac{20}{50}\), and then reduce the fraction to its lowest terms.

A. \(\frac{2 \times 10}{2 \times 25}\)

B. \(\frac{2 \times 2 \times 5}{2 \times 5 \times 5}\)

C. \(\frac{2 \times 2 \times 5 \times 20}{2 \times 5 \times 5 \times 50}\)

D. \(\frac{2 \times 5 \times 5}{2 \times 2 \times 5 \times 5}\)

20/50 in lowest terms is ___________.