D. For sure. Hope this helps you!
Vaccination has been one of the most successful developments of medical science because for centuries it has been proven effective in diminishing the number of people at risk on certain kinds of diseases. How does vaccination help? Vaccines are contained weakened organisms that are injected to the body. This then boosts the immune system as they release a certain type of cells to combat with the foreign organisms. When the person is exposed to the same organisms again, he/she will develop immunity.
Answer:
Buy Chapstick or use vaseline.
Explanation:
I used to live on a tropical island and I moved to the desert 6 years ago. Since it is so dry and my body is not used to it, I can't go 2 days without chapstick or my lips will become super chapped.
