(P). In a negative `beta^(-)` decay reaction `z^(X^(A))toz+1^(Y^(A))+beta^(-1)+overline(upsilon)` (1). Total energy is conserved
(Q). When a heavy object is projected from the surface of earth . (2). Total linear momentum of the system is conseved.
(R). When an electron jumps from higher energy level to ground state. (3). Total angular momentum is conserved
(S). When a rocket moves due to thrust of ejected gases . (4). total mass is conserved

Options

A. `{:(P,Q,R,S),(4,2,3,1):}`
B. `{:(P,Q,R,S),(4,2,3,3):}`
C. `{:(P,Q,R,S),(2,1,3,4):}`
D. `{:(P,Q,R,S),(3,1,4,2):}`

Explanation

(P). Total energy, total linear momentum, total angular momentum is conserved but mass is converted into energy.
(Q). Total energy, total linear momentum, total angular momentum and toal mass is conserved.
(R). Total energy, total linear momentum, total angular mometum and total mass is conserved.
(S). Total energy, total linear momentum, total angular momentum is conserved but mass is converted into energy.