A simple harmonic oscillator consists of a block of mass 2 kg attached to a spring of spring constant 100 N/m. When t = 1 s, the position and velocity of the block are x = 0.129 m and v = 3.415 m/s. What is the amplitude of the oscillation?
a) 0.161 m
b) 0.211 m
c) 0.279 m
d) 0.348 m