your best chocie would be answer A.
Answer:
Questionnaires
Explanation:
They allow both government and outside researchers to obtain estimates of a variety of health related topic or issue among either the entire nation or specific demographic group of the population.
And the survey design is cross section.
The answer is 4, “I encourage him to use the urinal at least every 2 hours”
You can reduce the stress of completing a project by taking a break from the project when you need it.
Devoting at least eight hours a day to the project can cause major stress, depending on if you haven't taken short breaks in between to go outside, get some air, and get some food in your stomach. Putting the project off until the last minute is a bad idea, even if you want to. Working on the project well into the night is also a bad idea, as your sleep routine is more important than a project. So, the most reliable answer is to take a break from the project when you need it, so you won't overwork yourself.
4.)
Because it helps with your immune system and your not putting so much on your lungs the more you use them