Define heat according to molecular theory .​

A theory that the temperature of a body is determined by the average kinetic energy of its particles and that an inflow of heat increases this energy

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.