Staying in good spirit is very important. So we should follow the advice to help us study and work better.

① Listen to light music to relax ourselves.

② Do sports and keep a healthy eating habit.

③ Stay up late to work harder.

④ If we are in trouble, get help from others or the Internet.

⑤ Keep silent when feeling nervous.

A、①②③

B、②③④

C、①②④

D、①②⑤