Two masses `m_(1)` and `m_(2)` are attached to a string which passes over a frictionless smooth pulley. When `m_(1)=10kg,m_(2)=6kg`, the acceleration of masses is

Options

A. `20 m//s^2`
B. `5 m//s^2`
C. `2.5 m//s^2`
D. `10 m//s^2`