A $\frac{I_{2}C_{1}Pm 2M_{3}\times 2}{I_{2}C_{1}Pm2M_{3}\times 2}$
B $\frac{I_{2}C_{1}Pm 1M_{3}\times 2}{I_{2}C_{1}P_{m}M_{3}\times 2}$
C $\frac{I_{2}C_{1}Pm 3M_{2}\times 2}{I_{2}C_{1}Pm 3M_{2}\times 2}$
D $\frac{I_{1}C_{1}Pm 3M_{3}\times 2}{I_{2}C_{1}Pm 3M_{3}\times 2}$