Please choose the correct ending to complete the given sentence: Youth: [header] How to use a pay phone [title] Carry enough coins for a phone call. [step] Some pay phones-especially those in airports and train stations-also accept credit cards these days, but the charges for those can be extra high. Make sure you read the cost on the machine before paying.

Ending1: Some phones may charge towards the recipient's money card. [title] Consider leaving one free jack on your service phone. Ending2: [title] Know your minimum phone charges when charging. [step] If you plan to call in cash, find out what the minimum number (4 , 100 canadian pounds) is to call instead of what is included for a credit card (7 , 200 us dollars). Ending3: [substeps] If you are planning to make calls in the bathroom, remember to bring coins (around 20 euros worth). For emergencies, you might want to use a us post card or traveler's check instead of a credit card to receive you more coins. Ending4: [title] Buy a small pack of wet wipes and gently wipe over the phone. [step] You don't know who has used it before you.

Answer format: ending1/ending2/ending3/ending4