Single/multi-choice problem: Which of the following solutions is better for the following goal:
How to Get Fruit Flies Out of Sink Drains

Available choices:
[A]. You can get rid of fruit flies in your sink drains by flushing the drains with bleach and boiling water.;
[B]. You can get rid of fruit flies in your sink drains by flushing the drains with ice and cold water.;
[A].