Complete the following sentence:

They (pick one)

Are using cell phones
Are being loud after 8 pm
Have a dog
Slack pack
Have a cat
Are Blue blazing
Are eating food with crinkly wrappers
Smoke cigarettes
Listen to headphones
Walk too slowly
Eat in the middle of the trail
Wear shorts
Wear a bear bell
Are not very attractive to look at

.... and ruin the AT hike experience for everyone as a result.