Read the text. Pay attention to the steps. By straightening the knees and using the ankle movement freely, the rise of the knees may be lessened several inches. When the pedal is at the highest point, the toe should be raised and the heel lowered.

–The Bicycle: Its Selection, Riding and Care,
L. F. Korns

Which steps are described in the text? Check all that apply.

Keep your knees straight.
Wear socks above your ankles.
Pedal quickly.
Raise your toes.
Lower your heel.