Consider a nuclear power plant, its transmission lines, and everything it provides energy to as a closed system. which of the following is then true for the system?

a nuclear power plant, its transmission lines, and everything it provides energy to as a closed system. in a closed system matter cannot flow in or out within the systems boundary but energy can flow through the system. so in a close system the amount of matter is constant while its energy can change.

Cin carbonh in hydrogeno in oxygen

My answer is opptionc, just check with anyone else