Write the next sentence in the following story.

How to cap a chimney
Push the cap inside the flue.
Position the cap so that it is centered directly over the inner pipe of the chimney. Push down on the cap, using your body weight to apply extra force, until the cap slides into the pipe.

Choose your answer from:
(A). Do not apply too much pressure, as you will see the inside pipe swell as the cap screws into place. If you cannot fit the cap snugly into the pipe, you may use a step ladder.
(B). Continue pushing until the solid part of the pipe is completely hidden inside the chimney. The netted or cage-like portion should be elevated above the chimney top.
(C). Lower the cap to snugly attach it into place over the chimney opening. Some chimney caps fall on their sides and are designed to overlap slightly if you position them forward or backward, resulting in a rugged cap.
(D). Make sure the cap stays in place until you have removed it, and then push it again for additional pressure to force the cap into place. You should be able to see where the hole for the cap sits on the exterior of the chimney.. The answer should be
(B).