What happens next in this paragraph?

How to save gems and money in clash of clans
Use gems for really important things only, such as builder huts.
They are the most important thing you can get in the game with gems. They make it so you can upgrade multiple buildings at the same time, increasing productivity.
Available choices:
(A). If you have no more gems to save, don't bother. Wait a while and you will find you will spend less gems..
(B). Upgrade your d&d farmers if you want money. There are only 2 versions of the d&d farming system, but you can upgrade more than 1 version of it at once..
(C). Only buy at the price you are. Gems need to be worth enough to ensure you build everything you need..
(D). This also makes it so that attackers can't steal as much gold and elixir. Clear all the natural decoration as possible..
(D).