Write the next sentence in the following story.

How to increase revenue in beauty salon
Call your merchant services provider or look on the internet and inquire about having gift cards custom designed to fit your salon.
Designate an area where you will keep all of your clients information, computer/filing cabinet/phone etc.
Make sure that the information ends up there, and only there.

Choose from:
A). Visit the beauty salon website, and if you have not heard of the beauty salon wiki, sign up. Search for a tub and water-supply service and find out if it has additional features.
B). Also find out if they will send you things that they are charging you for, such as cards, scissors/sharp tools, etc. Choose the right colors and interior materials.
C). Try to keep everything safe! Even at the salon you will want to store your supplies so that no one gets confused and believes you will need to always keep it stored to do things you enjoy. Having a grooming section set up will help too.
D). Start collecting client information such as name, address, email address. Let them know that this information is for your eyes only and this information will be used to send coupons and rewards.. The answer should be
D).