Write the next sentence in this paragraph:

How to root tomato suckers
Choose a healthy 6-inch sucker.
These are the best sized tomato suckers for rooting. You can usually find them growing between a main production stem and a leaf.

Pick from: a. Make sure they're healthy and visually free from disease. Ideally, it shouldn't be flowering.; b. If you're rooting the plant by hand, find the woody part of the tomato. Dig out the roots to insert a seed.; c. Soft throat suckers are the most common, the ones that pull away most of the sap from the root of the tomato. You can buy cherry suckers from your local health store.; d. Harvest any cut of potato that shows signs of rot or cracking. You can also use bigger sucker plants such as heather or grosgrain.;
a.