Single/multi-choice problem: Which of the following solutions is better for the following goal:
How do you freshen up your carpet on a budget?

+ Sprinkle baking soda on the carpet, wait 30 minutes then mop the carpet.;
+ Sprinkle baking soda on the carpet, wait 30 minutes then vacuum the carpet.;
Sprinkle baking soda on the carpet, wait 30 minutes then vacuum the carpet.