The diagrams below represent different ways heat can be transferred on Earth. The arrows in the diagrams show the direction of heat transfer. Which of the following shows the primary way heat is transferred in each diagram?

A)
Diagram X = conduction; Diagram Y= convection; Diagram Z = radiation

B)
Diagram X = convection; Diagram Y = radiation; Diagram Z = conduction

C)
Diagram X = convection; Diagram Y = conduction; Diagram Z = radiation