Please choose the correct ending to complete the given sentence: Health: [header] How to keep your feet warm in the winter [title] Follow all of these instructions before you go outside. [title] Put on a pair of socks. [step] It is recommended that you wear two layers of socks but that's up to you.

Ending1: [title] When ready to go outside, bring some thermal, linen or cotton bedding that is soft enough for the cold weather. [step] Roll your thermal or linen sheets in a place where they will completely dry. Ending2: You might also consider purchasing socks especially designed to keep the feet toasty warm outdoors; check out the options in a sports or outdoor store, and ask for socks that keep the feet warm. Many of these socks are designed to be warm without adding too much bulk, allowing you to wear your boots or shoes comfortably. Ending3: You can use a sock warmer, but it's not necessary. The same goes for your socks if you prefer to sit outside in the snow. Ending4: The warmth at night keeps the cold at bay. If you don't wish to wear socks at night try keeping them on as long as you can during hot spells.

Answer format: ending1/ending2/ending3/ending4