Two identical hockey pucks, each of mass 0.16kg, slide on nearly frictionless ice. One puck moves due east at 3.0m/s while the other moves due west at the same speed. Which of the following gives the total linear momentum of the two-puck system just before they meet?
a) 0.48kg⋅m/s east
b) 0kg⋅m/s
c) 0.96kg⋅m/s east
d) 0.48kg⋅m/s west