human
Question: Sports may be fun, but you need to play them safely. Here are some tips to help you stay safe while you're playing sports in winter. * Get your body ready! Before you do any exercise, be sure to warm up for at least five minutes. During warming up you should stretch  all parts of your body. * Wear the right clothes! Be sure to wear the right clothes for sports. If you play winter sports, make sure that you dress warmly. Also make sure to use suntan oil  . It may be cold, but the sun is still bright! If you don't put on suntan oil, your skin may be hurt. If you go skiing, be sure to wear waterproof  trousers and gloves. If you go running in cold weather, try to wear a scarf. It will keep your face, ears and neck warm. * Stop playing sports when you are hurt! If you get hurt when playing sports, don't play again until you get well. * Don't get thirsty! Drink a lot when playing sports because it is easy to become thirsty. ,. You should warm up at least  _   minutes before you do exercises.

Choices:
A) five
B) ten
C) fifteen
D) twenty
gpt
The correct answer is 0: five.