Which phrase describes convection? the process in which energy is released by molecules breaking apart

the process in which energy is emitted by one object, transmitted through space, and absorbed by another

transfer of heat between two objects that are touching

transfer of heat by the actual movement of warmed matter

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks. energy was destroyed inside the blocks. energy was absorbed into the blocks from outside the system. energy was transferred from the warmer block to the cooler block.