A Hockey Puck Traveling at Speed V on Essentially Frictionless

Multiple Choice

A hockey puck traveling at speed v on essentially frictionless ice collides elastically with one end of a straight stick lying flat on the ice. In this collision

A) momentum is conserved.
B) angular momentum is conserved.
C) energy is conserved.
D) all of the above are conserved.
E) only momentum and angular momentum are conserved.