Select from options: Continue writing the next sentence.

How to keep rfid credit cards safe
Place your rfid cards next to each other in your wallet.
This can make it more difficult for thieves to read a particular card, but the protection is limited.
Carry your rfid cards in a front pocket.

Options:
(a). You won't know where the card is once they're into your wallet, even if you didn't bring it with you. There is a lower risk of thieves seeing the cards with your wallet and finding out that you have them.
(b). If you usually carry your credit cards in a wallet in your back pocket, you are potentially more vulnerable to thieves who could step up behind you with a scanning device. If you switch the cards to a front pocket, you will tend to be more observant of people in front of you and are less likely to become a victim.
(c). Seek help if someone wants to rob you of your go-to wallet. Carry the rfid cards alongside a small card that holds your sim card.
(d). If someone texts you saying " hey chip, " that will be your card as it already has a cover and will open when you touch it. See step 2 for how to lock your card.
Answer:
(b).