How many balls do you have to move, for the triangle to point in a different direction?

Hello!

I am assuming THESE are the Options right:

A) 5
B) 2
C) 4
D) 3
^^^
And this is the Picture right? (Down Below)

So in that case, The Correct Answer would be:

 D)3 because you have to move 3 for the triangle to move.


Hope this Helps! Have A Wonderful Day! :)