Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to pick a good backpack [title] Choose a backpack you like and suits the way you plan to use it. [substeps] If you are planning on using it as a school bag, pick a bag which looks sturdy and is roomy with a large main compartments for carrying textbooks and folders. Make sure there is a drink bottle pouch.

Ending1: This means stuff for drinks inside of it. You could use it as a personal life bag if you like. Ending2: If you plan on storing your notebooks and bag in your backpack, that is a good place to start if you plan on using them for school. If your backpack is going to be coming with an alarm clock, invest in a light blue one that matches with the color on the bag. Ending3: If you are selecting a backpack for camping, it is good to look for a framed pack with additional straps for comfort. Look for padding on the sides to protect your back from chafing. Ending4: There is to be any purses that look sharp or flashy. It's important to see that it is easy to hold.

Answer format: ending1/ending2/ending3/ending4