This project is said right now and so far everything is going on

This project is said right now and so far everything is going on quite smoothly.
A、to have carried out
B、having been carried out
C、to have been carried out
D、to be being carried out
【正确答案】：D
【题目解析】：be said to do固定搭配：据说，句子后半部分is going证明这个计划正在被执行，D项符合题意。