Respuesta :
The answer is A
when two small nuclei join together and form one larger nucleus
when two small nuclei join together and form one larger nucleus
The description of the fusion reaction should include option A.
What is a fusion reaction?
It is the reaction where two or more atomic nuclei should be connected to create one or more distinct atomic nuclei and subatomic particles.
Here the difference should be in mass that lies between the reactants and products that should be manifested either at the time release or the absorption of energy.
So based on this, the option A is correct.
learn more about the reaction here: https://brainly.com/question/19485411