Choose the correct spelling of the highlighted word.
The school calander this year has turned out really nice.

Correct option is B

Option (b) is correctly spelt word.
Correct spelling is: "calendar" – A calendar is a chart or series of pages showing the days, weeks, and months of a particular year. (Hindi meaning: कैलेंडर, तिथि-पत्रक)
Example: I checked the calendar to plan my holidays in advance.