This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to organize water bottles
Dispose of bottles that leak or smell to make more room.
Check your water bottle collection carefully. Put some water in each bottle and take a drink from it.

Options: (I). Water bottles come in either flavors or colors, and them should be labeled so you can locate them easily. Some different colors to look for include black, pink, blue, and purple. (II). Cover a large plastic container with paper towel. Shake the container to remove all of the loose material. (III). Replace paper labels or lids to prevent leaking from more bottles. Avoid storing bottles with lithium chloride in them. (IV). If the bottle smells weird as you bring it toward your face, or if any water at all leaks out, get rid of it. Call a recycling agency in your area to see if they accept the material that your bottle is made from, or throw it away if they don't.
The answer is:
(IV).