What’s the context behind this? If I would have to guess, it would be true.
This abbreviation could stand for <em>sound effects</em> and so it could be needed in scripts for television ads (D).
In the copy for billboards (A) sound effects are irrelevant just like in the copy for magazine ads (B) or newspaper ads (C), because sound effects are not needed in these kinds of advertisement. So, as sound effects can only be used in one of these choices, television ads, the abbreviation SFX will be needed in scripts for TV ads. Also, similar abbreviations could only be used in the script of an advert and not in the copy that is the final text that will be shown to the public, so choices A, B, and C are wrong for this reason as well.
Answer:
Dear Headmaster,
I’m writing to let you know some ideas I have that might be useful to improve my academic performance as well as that of my classmates.
I’ve recently discovered there´s a large amount of information in the library that hasn´t been digitalized nor listed on our online catalogs that could be very useful if more available. Some students are already sharing information about these hidden gems and would be happy to make it public through institutional channels.
Furthermore, many students struggle to get some of the assigned books, either for their unavailability on campus, their high price to buy, or the lack of new publications of a specific book. And yet many will be willing to trade used books for those they need. A book trade fair could be a good idea!
Finally, I´m a little concerned about the lack of options in the cafeteria. I know this might seem like a minor issue, but many of us are vegetarians or have dietary issues that should be addressed. Some students not only started bringing their own food but have also started selling meals to their classmates as a way to make some money. Maybe a food court that allowed them a more institutional setting could help us all.
I hope these suggestions are helpful. Please let me know if I can help in any way.
Thanks, and best wishes,