Detailed Instructions: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Problem:[header] How to use household items to remove shoe odors [title] Steep black teabags in hot water. [step] Black tea has a high concentration of tannins, a substance that works well for killing odor-producing bacteria in your shoes. Steep two teabags, one for each shoe, in boiling water for two to three minutes. <sep> (A) The mild tannins will loosen dirt, and will help prevent any pooping. [title] Dunk the shoes gently with a cloth or newspaper. (B) [title] Soak or massage black tea bags. [step] If you don't have reliable ways to identify just how bad a smelly shoe smells, try soaking or massaging black tea bags. (C) [substeps] To prevent yourself from getting burned by a hot teabag, you may want to use a utensil for removal. A spoon, fork, or tongs can help you safely remove your teabags. (D) To test the tea's tannins, let them steep briefly before removing the shoes. [substeps] Cool the tea before removing the laces.
Solution:
C