Red carpet entrance to school

A total of 30 first-grade students and their parents walked the red carpet to school in formal wear at the primary school in Luoyang, Central China's Henan province on Sept 1 to mark their first day at school. Each student, accompanied by his or her parents, walked down the red carpet to their teachers who wore angel wings to welcome them.

What did the teachers wear to welcome the students?

A. Formal suits

B. Miniskirts

C. Angel wings