Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to keep rfid credit cards safe [title] Place your rfid cards next to each other in your wallet. [step] This can make it more difficult for thieves to read a particular card, but the protection is limited. [title] Carry your rfid cards in a front pocket.

Ending1: [step] 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. Ending2: [step] 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. Ending3: [step] 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. Ending4: [step] 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 format: ending1/ending2/ending3/ending4