Exercício: sobre preposições em inglês

No exercício abaixo qual das respostas está correta?

During the week I get up early ______ the morning and go to bed late ______ night, But normally _____ weekends I sleep _______ midday.

a) in – at – at – until
b) on – in – in – as far as
c) on – at – at – even
d) in – at – in – until
e) in – in – at – till