Which of the following statements is true about both nuclear fusion and nuclear fission?

a. they occur in the sun.

b. heavy atoms are split.

c. two light nuclei combine.

d. some mass changes into energy.

The statement that is true of both nuclear fusion and nuclear fission is : They both have a high energy output. B is the answer.

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates