5. During a heat transfer investigation, students filled two cups with water. One cup contains 100mL of cold water while the other contains 100 mL of hot water. A metal heat wire is placed inside the water of both cups and thermometers are attached to each cup. Which of the following BEST explains how the heat is transferred? Cold Water Hot Water.

A. This investigation would not result in any heat being transferred.

B. Convection, because the metal wire was heated through convection currents.

C. Radiation, because the metal wire was heated by electromagnetic waves.

D. Conduction, because the metal wire was in direct contact with water in both containers.​