The ratio of height of Porter governor (when length of arms and links are equal) to the height of Watt's governor is (where m = Mass of the ball and M = Mass on the sleeve)

A. $$\frac{{\text{m}}}{{{\text{m}} + {\text{M}}}}$$

B. $$\frac{{\text{M}}}{{{\text{m}} + {\text{M}}}}$$

C. $$\frac{{{\text{m}} + {\text{M}}}}{{\text{m}}}$$

D. $$\frac{{{\text{m}} + {\text{M}}}}{{\text{M}}}$$

Answer: Option C