Nuclear reactions convert protons into helium; thus, becoming the source of all energy radiated by the sun.
a) fission
b) fraction
c) frisson
eliminate
d) fusion

Answer;

Nuclear fusion

Nuclear fusion reactions convert protons into helium; thus, becoming the source of all energy radiated by the sun.

Explanation;Nuclear fusion is a type of nuclear reaction in which two or more nuclei of atoms join to form one or more different atomic nuclei and subatomic particles. Nuclear fusion takes place in the sun where protons or hydrogen nuclei collide in a nuclear fusion reaction at very high temperatures to form Helium. This nuclear fusion results in the conversion of 4 hydrogen atoms into helium atom.

Your answer is c. explanation: plasma  is the fourth state of matter, derived from the gaseous state of matter.  plasma  can contain free  electrons  and/or  ions. while  plasma is never neutral, it can either be positively or negatively charged.  gases, however, are electrically neutral.