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".
Q: [header] How to use spermicides [title] Fill the plastic applicator tube with spermicide. [step] Your foam, cream, or jelly spermicide will come with an applicator tube. Fill the applicator as indicated on the packaging. <sep> (A) Work the applicator tube carefully until it begins to fill, then slowly close the cap to hold it in place. [title] Let the foam slowly move in-and-out of the applicator tube. (B) This amount will vary between different spermicide products. [substeps] Foam, cream, and jelly spermicides are equally effective but may be more or less comfortable to use for different people based on their personal preferences. (C) Let the area of the nozzle close up to the applicator so that you can attach spermicide to it. [substeps] Make sure that you fill the applicator tube to the desired position. (D) [substeps] Many nixes have a cap on the nozzle, which you can dispose of. [title] Dab the cream or jelly onto the applicator.
A:
B