Multiple Choice

Hello everyone,

Could you please help me with choosing the correct answer?

This year's school................looks less busy than last year's, but that"s because we've got several periods of "private study" when we can revise for our exams

A. timetable B. schedule

C. calendar D. all of them

I chose "D". Am I right?

My justification here is: "timetable is okay in British English and "schedule" is okay in American English and "calendar" is okay in both American and British English.

Regards,

JA