relative clause...

[Tortoise]

"The animal moved toward me, I felt it".

a) I felt the animal to be moving toward me.
b) I felt the animal being moved toward me.
c) I felt the animal move toward me.
d) I felt the animal to move toward me.

We can see that b) and c) are impossible. But, a) and d), which one is the best choice?

Thanks.

[Lost_Soul]

I guess c is right. Why do you think it is impossible ?
You can also say I felt the animal moving toward me.

b has the opposite meaning (The animal was moved toward me by some force)