I believe it is option "D.) The flu vaccine is not reliable enough to be worthwhile"
It would have a negative impact on the economy due to people not spending money to have the flu vaccine.
Your paragraph is perfect except that you should not capitalize the word "mythology".
Answer:
With due respect, my name is ________ (Name of the Student). I am studying in the class _________ (Class) , having the roll number ____________ (Roll Number Issued).
With a humble notification, I want to bring in your concern that we need to move the generator. With this noise, we are not able to withstand our concentration in the classes. It is very difficult to stay for hours with frequent power cuts as __________ (fans/lights/computers/any other required equipment) stop working and make lots of noise which leads to a lack of concentration in class.
I humbly request you to please have a look at the matter and provide us with an appropriate solution to it.
Thanking you,
Yours Faithfully/Sincerely,
__________ (Name of the Student)
Explanation: