Two identical balls 1 and 2 are tied to two strings as shown in figure. They are rotated about point O. Ball 1 is observed from ball 2, centrifugal force on ball 1 is `F_(1)`. Similarly, ball 2 is observed from ball 1 and centrifugal force on ball 2 is `F_(2)`, then
A. `|F_(1)|=|F_(2)|=0`
B. `|F_(1)|gt|F_(2)|`
C. `|F_(1)|=|F_(2)|ne 0`
D. `F_(1) and F_(2)` are antiparallel
