This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to plant mums
Choose garden mums for a hardy flower.
Hardy mums can last for several years if you plant them at the correct time of year and care for them properly. They'll put down deep roots that help them survive the winter and come back the following year and flower again.

Choices:
(A). Choose tall mums if you only care for the top two or three plants. Older mums take longer to be planted, so try to choose mums that are tall enough to be planted by hand if you want a realistic look without damaging the roots..
(B). If you can afford to plant mums in february or december, do so. Determine how many mums you want in your garden..
(C). Choose florist mums for a greater variety. Florist mums are less hardy than garden mums, and they are usually potted or planted in a garden bed with the intention of removing them once their blossoms are gone..
(D). Some mums will actually flower year-round but that is usually when its the most active. After a few days, they'll start tearing apart their roots in the ground, as if waiting for the next frost..
The answer is:
(C).