Multi-choice problem: Continue writing the next sentence in this paragraph:

How to choose plants for a garden
Plant hardy perennials in cold conditions.
Gardeners in cool, temperate regions will have the best luck with resilient flowers and shrubs like sorrels, daylilies and ostrich fern. These plants are better equipped to survive low or drastically fluctuating temperatures than their warm-weather counterparts.

a). Plants that favor frigid conditions tend to be woody and have little colorful foliage. You can find more information on the different climate zones and where you fall within them online..
b). Too warm or too cold conditions can put serious stress on a flowers' hearts, reducing their growth and encouraging despair. Get a tropical plant, if possible..
c). As an added benefit, they are ready to be grown instantly after blossoms have stopped appearing. You can experiment with plant cultures to see what reacts better with temperatures and root temperatures..
d). In colder weather, however, they're less likely to be affected. However, they're also more likely to contract bacteria which could cause problems later on in life, so it's best to plant plants that will last longer..
a).