Yami pours powdered cocoa mix into milk and stirs it. then she microwaves the mixture for three minutes. when she takes the cup out, the handle is very warm. steam rises from the cup, so she blows it before taking a sip. in which part of this scenario can convection be best observed? a. stirring powdered cocoa mix into milk b. touching the warm handle of the cup c. touching the warm handle of the cup d. blowing on the hot cocoa to cool it