Your answer should be heat energy!
Nonferrous alloys do not contain iron as the name suggests. Ferrous is the latin word for iron. These alloys use precious metals such as gold, silver, platinum and other metals like copper, aluminum, lead, zinc and even alloys like brass. Answer is D.
<span>A process or reaction which takes in heat from the surroundings is said to be </span><u>Endothermic.</u>