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

How to use a band aid
Assess whether a bandage is necessary.
Though you may think every wound needs a bandage, a bandage may actually be unhelpful or even harmful to certain types of wounds. In general, a cut or gash that is not very deep will benefit from a bandage, while other types of wounds will require different treatment approaches.

Choose from:
a). You should determine if a bandage is necessary before you run a business and attend shows where you should have a bandage on to you. You can purchase a band aid and dressing pads at your local drug store or pharmacy.;
b). Keeping minor scratches, scrapes, and cuts clean might be sufficient, and you may be able to leave them uncovered. This will allow the wound to remain dry and begin to heal.;
c). Ripping a bandage is generally the preferable method, but you should still ask yourself if a bandage is necessary. If so, then you should consider a different option that is more supportive, rather than " bandaging.;
d). Cracks, lacerations, or scrapes that are deep within the skin may be treatable with a bandage. If, however, you have a big scrape and rips on your arm or leg, a bandage might not be necessary.;
The answer is:
b).