Energy production in stars occurs via hydrogen conversion to helium. which is a fusion process.
A->3
Fission in a nuclear reactor occurs by absorption of thermal neutron by U-235.
B->1
Heavy water is used as moderator to slow down the high energy neutrons to thermal neutrons in fission reactor
B->4
β decay occurs in Co-60 nucleus and neutrino is emitted in decay.
C->2,5
γ ray emission happens in fission, fusion.
D->1,2,3,5