I’m disappointed with the new officers elected in our club,but there is no point _______ about itA.with us worryingB.if we worryC.in worryingD.to worry

I’m disappointed with the new officers elected in our club,but there is no point _______ about it
A.with us worrying
B.if we worry
C.in worrying
D.to worry

C,point in doing sth:做.的意义 我对我们俱乐部新当选的官员感到失望,但这担心没意义.