Select from options: Continue writing the next sentence.

How to grow horseradish
Obtain horseradish crowns or roots to plant.
Purchase a cutting of horseradish from a greenhouse or grocery store. Most of the time, these places will sell crowns (the uppermost part of the plant) or roots that are pre-cut and ready to plant.

Options are:
(A). The crown will not grow roots in late autumn. Horseradish crowns will need 7 to 10 days to germinate and 18 to 20 days to mature into roots in late fall.;
(B). The crowns, however, often have only a very tiny number of roots growing out of them. It's better to plant them slowly, without much effort, to avoid any root rot.;
(C). Most gardeners start horseradish from crowns, as the plant grows from the roots and only its weed-like flowers produce seeds. Like carrots or potatoes, horseradish roots are ready to go straight into the ground.;
(D). Dig up the soil around the roots. Use a pair of hands to help guide the rooting process.;
Answer:
(C).