Multi-choice problem: Continue writing the next sentence in this paragraph:

How to make your old iphone useful
When you go for your upgrade, make it clear to the salesperson in the store that you want to keep your old phone.
Some stores may pressure you to trade it in or recycle it. But your old iphone is worth a lot more than you can be offered.

Choose your answer from:
A). Tell the salesperson to think of something you want before they give you a new phone, and tell them what that is. It doesn't matter what personal details you factor in or have to know.
B). Go to settings, general, and about, and change name from your current to something else, such as your name followed by " old. " this way, under icloud, you will have a way to distinguish the devices.
C). Decide what new phone or computer you want to receive and what features you want to use it for. For example, some stores may keep iphones locally built and other stores may store older smart phones locally built without a brick and mortar setup, which may save money.
D). So ask if they give you the " cheapest version " of the ios phone. Consider asking an older friend to lend you another iphone.
B).