In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is

A. $$\frac{{\text{G}}}{{1 + {\text{H}}}}$$

B. $$\frac{{\text{H}}}{{1 + {\text{G}}}}$$

C. $$\frac{{\text{G}}}{{\text{H}}}$$

D. $$\frac{{\text{H}}}{{\text{G}}}$$

Answer: Option B