Question: How to mop a floor.

  Options: 
 A. Dip the mop into the solution in the bucket, then wring the mop out until it is just damp. Using a damp mop go over the floor back and forth to pick up dirt. Rinse in water, squeeze out and repeat until finished. with floor.
 B. Dip the mop into the plain water in the bucket, then wring the mop out until it is just damp. Using a damp mop go over the floor back and forth to pick up dirt. Rinse in water, squeeze out and repeat until finished. with floor.
Answer: A