What is a healthy habit to reduce the bacteria that cause bad breath? When brushing your teeth, it is important to brush your
to remove the bacteria that cause bad breath.

You Don't Brush and Floss Every Day—Brushing and flossing every day is the best way to prevent bad breath and maintain a healthy mouth. If you struggle with halitosis, this is the first habit you'll need to change. Make sure you also scrape off your tongue to get rid of any bacteria build up

Explanation:

out of the choices i'd say d the ability to set goals, mainly because to desire to continue you need motivation but it isn't motivation in that part, but setting goals means you have an endgame and you want to reach it which sums up motivation.