A particle of mass M may move with the velocity v, along AO, or DE or BC. Then which of the following statements is not correct about particle's angular momentum about point O.

• A

  It is zero when it is at A and moves along OA

• B

  It is same at all points along the line DE

• C

  It is of the same magnitude but oppositely directed at B and D

• D

  It increases as it moves along the line BC