Straight is best
Picture A is generally accepted as the best of the 4 choices you provided; however, the most important thing is that you pull straight across the chest as in pictures A and B. I have a friend who throws like pictures C and D, and he has a huge problem with his throws going right almost every time (right hand back hand). If you continue the arrow through the disc in pictures C and D you will see that it points to the right, which is where the disc is going to go. So if you want the disc to go straight, you need to pull it along a straight path toward the direction you want it to go.