What will happen when substance A is dropped into substance B? a Substance A and B will eventually reach the same temperature. b Substance A will get even warmer as heat flows into it from substance B. c Substance A and B will exchange heat, and they both will reach 25°C. d Substance A and B will exchange heat, and they both will reach 50°C.

c Substance A and B will exchange heat, and they both will reach 25°C.