Task: Text Completion
Input (English): [header] How to prevent spider mites on houseplants [title] Keep your houseplants hydrated. [step] Watering your houseplants as needed on a regular basis will prevent spider mite infestation, since spider mites only thrive on houseplants that are dry. [substeps] Use cold water instead of lukewarm water to water your houseplants. <sep> (A) It is recommended to be sure that every day you water your houseplants, you may see spider mites appear on the " float " on the water bottles. In some cases, spider mites may appear as large clusters, rather than a single cluster. (B) If you do not have a tank, place plants in small jars or bowls that can drain into the tank regularly. [title] Plant your plants in terracotta or porcelain pots. (C) This may prevent weak, poorly hydrated houseplants from being able to survive an infestation. [title] Defrost your plants every six to eight weeks. (D) Spider mites will not infest your plants if the temperature is too cold. [title] Remove dust from your houseplants once per week.
Output (English): D