Please choose the correct ending to complete the given sentence: Health: [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.

Ending1: 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. Ending2: 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. Ending3: 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. Ending4: [substeps] Many nixes have a cap on the nozzle, which you can dispose of. [title] Dab the cream or jelly onto the applicator.

Answer format: ending1/ending2/ending3/ending4