Here is a goal: How do I prep the oven to bake pizza?

Which way makes more sense to accomplish this goal?

Options:
(A). Turn the clock dial to the desired temperature, likely in the 375 to 400 range by turning the knob with your hand.
(B). Turn the knob to the desired temperature, likely in the 375 to 400 range by turning the knob with your hand.
(B).