I would say b. c. & d. because the question is asking how to stay safe before, not during.
What is blood regulation?
Answer: Blood regulation is the process in which insulin helps control the levels of glucose in the blood. This process is important and glucagon which is another hormone works along insulin to make it happen.
I hope it helps, Regards.
D. Hygiene education
The outbreak of influenza caused many hospitals to post articles about how to avoid the flu and they have recommended to minimize the contact with influenza by taking of your hygiene and staying away from family members/friends with the sickness.
The answer is ...They should check their facts and exchange questions with each other. .
Hope this helps
