Write the next sentence in the following story.

How to pinch carnations
Pinch your carnations to help flowers grow.
Pinching carnations as they grow encourages the growth of lateral stems, which means more flowers will grow. Pinching is especially important if you want to grow flowers for cutting.

Options are:
(I) You can pinch as much variety as you want, but when you're planning to work with cut-outs, you may always want to pinch before you move on to just cutting, which can make it feel less stressful. Grind your carnations to thin the leaves.
(II) So, instead of pinching a bunch of you fancy flowers, you can pinch dozens. Pinching prevents any additional flowers from reaching the ground.
(III) Pinching also helps the plant to grow bushy rather than as a single tall stem, which some gardeners prefer. The height at which you pinch the plant stem off is the height at which it should start to bush from.
(IV) If you only do this once every two years, you may have to pinch for too long. Cut larger carnations once they have blossoms and next flowering stage.. The answer should be
(III)