For an Oldham coupling used between two shafts, which among the following statements are correct?

Q. For an Oldham coupling used between two shafts, which among the following statements are correct?

1. Torsional load is transferred along shaft axis.
2. A velocity ratio of 1:2 between shafts is obtained without using gears.
3. Bending load is transferred transverse to shaft axis.
4. Rotation is transferred along shaft axis.

(A) I and III               (B) I and IV               (C) II and III             (D) II and IV

Ans: I and IV