Which scenario correctly illustrates heat?(1 point)

cold person gets even colder when they sit in a sauna with a temperature of 105° F
cold person’s hands get warmer by holding a rock that has been sitting in the sun
ice in a cold glass of water remains ice and never melts
bathtub full of hot water gets even warmer in a cold room

The scenario that correctly illustrates heat is: bathtub full of hot water gets even warmer in a cold room.