Swan Air has received approval _______ daily flights between St. Petersburg and Brussels starting in May.

(A)perform
(B)to perform
(C)perfoming
(D)performance

答えB

The TBR Health Organization yesterday marked its 10th anniversary with a luncheon ________ its founding members.

(A)honor
(B)honors
(C)honored
(D)honoring

答えD

上の問題はなぜCが不正解なのでしょう？
下の問題の正解がDなのは理解できるんですが、その理屈だと上の問題はCも正解になりそうな気がするのですが？