Can i wash my hands with soap while wearing sterling silver

Washing your hands using soap with the ring on should not be a problem. 

but rings can slip off during the washing of your hands if it is not an exact fit and soap can build up under the ring and cause a rash on your finger 

If you value the ring, taking it off when washing your hands would be safer 

Yes it should be effective but can cause a rash so safer to take off

Ithink it's choice d (antibiotic resistance)

One health risk and the most important one is obesity, it can cause obesity since you are not leveling your food like you wont ever get full because your just snacking between foods which can also cause diabetes.hope this : )