Answer:
1.) abstinence
2.) vaccination
3.) condoms
Explanation:
You didn't include the options from the drop down menus that are mentioned in your question, but the above answers are my best assumptions given that abstinence is the only way to 100% effectively prevent STD's/STI's, there are vaccinations available to protect against hepatitis, and condoms are used as a barrier to reduce the risk of STD's/STI's. That could also be answered with "female condom".
Fresh food restaurants like sushi restaurants, if it's not made the second the server says what the customer wants, they can get food poisoning. Some seafood restaurants have a time limit on how long they can take to make food.
Same with subway & bakeries, it has to be fresh, no waiting.