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".
Q: [header] How to remove odor from your shoes with baking soda [title] Measure out at least 1 tablespoon of baking soda into each shoe. [step] You need to use enough baking soda to cover the entire insole of the shoe. If you have big shoes, you may need to use more than 1 tablespoon of baking soda. <sep> (A) [title] Shake the shoe to distribute the baking soda across the insole. [step] Tilt the shoe forward and back to help spread the baking soda across the insole. (B) [title] Pour the baking soda into a spray bottle and shake it up thoroughly. [step] Pour the baking soda over the insole of the shoe. (C) [title] Soak a cotton ball in baking soda. [step] Place the fresh teaspoon of baking soda in your shoe. (D) [substeps] When packing your shoe in the bag, use a funnel to ensure that the baking soda contains all of the baking soda. [title] Pre-soak the shoes for 30 minutes.
A:
A