Answer:
Everyone has their own beliefs and prefrences, and you shouldn't force getting a vaccine on those who don't think they should. Respect others feelings, maybe you think that you should get the vaccine, and that it's good for you, but other people may not feel the same way, you should be careful about hurting people's feelings or making them angry, but you do whatever floats your boat :)
Explanation:
God bless!
You should definitely not type your whole email in all capitals!
Also, you should keep you message brief, this is true: people receive a lot of emails and prefer to read them fast.
I think that the first option is correct (a): Emails don't usually have headings in the text: this would make them too long.
