A wave is represented by the equation
`y = A sin(10pix + 15pit + (pi)/(3))`
where `x` is in meter and `t` is in seconds. The expression represents :
A. A wave travelling in the positive X direction with a velocity of 1.5 m / sec
B. A wave travelling in the negative X direction with a velocity of 1.5 m / sec
C. A wave travelling in the negative X direction with a wavelength of 0.2 m
D. A wave travelling in the positive X direction with a wavelength of 0.2 m
