What Is the Correct Hand Placement When Spotting the Supine

What is the correct hand placement when spotting the supine dumbbell fly?

A) Close to your client's biceps without touching them.
B) Close to the dumbbells or wrists of your client without touching them.
C) Maintaining contact behind your client's elbows on the descent of the dumbbells.
D) Hands held at your sides with your elbows flexed at a 45-degree angle.