A particle of mass m undergoes harmonic oscillations with period T, about x = 0. Now a force F is applied to the particle, acting opposite in direction to its instantaneous velocity: F = – kv. What happens when the particle is released from rest from some x > 0:

a. It undergoes a steady oscillation with a period larger than T 

b. It undergoes a decaying oscillation 

c. It no longer oscillates, it moves in one direction with decreasing speed 

d. It could oscillate or not, depending on parameter values