When two springs of equal lengths are arranged to form a cluster spring then which of the following statements are true
1. Angle of twist in both the springs will be equal
2. Deflection of both the springs will be equal
3. Load taken by each spring will be half the total load
4. Shear stress in each spring will be equal
(a) 2 only (b) 2 and 3 only
(c) 3 and 4 only (d) 1, 2 and 4 only