Answer
(c)
Work Step by Step
In nuclear fission, a neutron (i) collides with a uranium-235 nucleus, causing it to split.
One of the main fission products is barium-142 (ii), along with another fragment such as krypton-91.
The reaction releases kinetic energy (iii) as the fragments and neutrons fly apart, which is harnessed in nuclear power plants.
The answer is (c).