Your answer is D. All of the above
hope this helps :D
1) saving money / keeping a low budget
2) every week buy groceries
3) keeping their household stable (including taxes, bills, morgage, etc.)
Three main factors that motivates switching prescription drugs to over-the-counter drugs are: is it something people can easily die from, is it a powerful drug that could be used to get high or overdose, and is it safe for people to take. If people switch drugs to over-the-counter there is more of it and it isn't a rare thing to find. It makes the medication less expensive.