A particle is performing simple harmonic motion along `x-`axis with amplitude `4 cm` and time period `1.2 sec` .The minimum time taken by the particle to move from `x = 2 cm to x = +4 cm` and back again is given by
A. 0.6 sec
B. 0.4 sec
C. 0.3 sec
D. 0.2 sec