The correct statement is: Heat is transferred from the metal block to the ice cube, causing the ice to melt.
However, if this statement needs to be adjusted based on the options provided, it seems that the provided options contain repetition and may not express the correct transfer from the metal block to the ice. The general principle is that heat moves from the warmer object (the metal block at 30°C) to the colder one (the ice cube), leading to the melting of the ice.