My sister usually wakes up at 5:30 a.m but gets up at 6:00 o’clock in the morning. She …. the pets and brings up a couple of coffees. Her job is the same all year around. In summer, She is really busy and usually gets up at 4:30 a.m, while ….spring, she normally gets up at 6:00 a.m.

She normally has breakfast at around 07:30 and she usually has a bowl of cereal or she’d have a plate of toast but she has a huge plate of Biryani rice on weekends. She has a very specific lunchtime and it is always at 01:00 o’clock in the afternoon and she normally gets home from work at around 04:30 in the afternoon then she has dinner at around 06:30 in the evening. Every night, before she goes to bed, at 09:30 to 10:00 p.m, she has a shower and then she goes to bed …. 10:00 p.m.

The appropriate preposition of the underlined blank space is ….

A
at

B
on

C
in

D
under