Gingivitis that is not treated may lead to periodontitis.
Answer:
This isn't a health question but...
It's possible she didn't like what she saw in you when meeting in-person. This isn't entirely uncommon in friendships (and more).
Give her some time and message her again. But if she says stop, stop.
Explanation:
Intravenous mixtures are prepared in sterile conditions. They are infusions that are given through injections and syringes. It is important to keep the preparation sterile as it is directly injected to the veins which is a faster way to assimilate to the system. Thereby, proper preparations must be applied. ANswer is D.