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". 

Example Input: [header] How to clean sperrys [title] Remove caked-on dirt with a bristle brush. [step] Using a soft toothbrush or a bristle brush made for leather, gently brush away any dirt, dust, or debris. Brush the leather with soft strokes in the same direction. <sep> (A) [substeps] Brushing the pricier areas first helps to allow for better handling of all surfaces. [title] Dust the back and sides of the flaked-off parts with a lint-free cloth. (B) If you scrub the shoes in multiple directions, you're likely to leave scars. [substeps] Use a rubber-bristled brush rather than a nylon-bristled brush. (C) [substeps] When applying pressure, make sure to keep the bristles away from your sperrys' feathers. It helps to remove any stuck on insects. (D) [substeps] Sweep or wipe off any grime stuck to the surface. Dry the area with a soft cloth or a clean towel afterwards.
Example Output: B

Example Input: A indoor course is panned with camera in a warehouse setting. an athlete <sep> (A) runs on the course with a javelin, catching it about six times in the air before returning to throw again. (B) runs down a track and pole vaults over a high bar and onto a cushioned landing pad. (C) runs through the course exhibits. (D) performs a routine on the course taking long spins around turns.
Example Output: B

Example Input: [header] How to make a handkerchief [title] Purchase the fabric. [step] Check the fabric content to see what kind of maintenance it will require in order to stay looking good. For everyday use, you will probably want something that is washable and requires little ironing. <sep> (A) The photo cardstock, though, will work just fine for photos. [substeps] Select a photo width of 11 in. (B) Popular fabrics for handkerchief sleeves include corduroy, flannel and polyester. [substeps] When the material you are using has very little wear and tear, it is most visible if it is securely sewn into place. (C) [substeps] Measure the inside width of the handkerchief. Measure how high you want the corners of the handkerchief to be. (D) [substeps] Rather than purchase fabric, look around in your scraps. This is a great project for using up leftovers or recycling old fabrics.
Example Output:
D