In which sentence do the underlined words make up a dependent clause?
A. Feel free to bake a cake for the potluck, or you can buy one if time
is short.
B. Even when the plane is on fire, the pilot must carefully consult a
checklist
C. Our plan is to see the Grand Canyon, but we'll also visit Phoenix if
possible
D. Although fireworks are fun, they can be quite dangerous if
mishandled​
