时间表达 — 英语选择题

Lily's day: Lily gets up at six o'clock. She has breakfast at seven o'clock. After breakfast, she goes to school. Which sentence is RIGHT (正确的)? A. Lily gets up at seven o'clock. B. Lily has breakfast at six o'clock. C. Lily goes to school after seven o'clock. D. Lily goes to school at six o'clock.