“Sabbatical” refers to a break, leave, or extended holiday from work, usually for study or rest.
The synonym “holiday” refers to a period of rest or leave from work.
Thus, the correct answer is Option D.
Arun’s present age in years is 40% of Barun’s. In another few years, Arun’s age will be half of Barun’s. By what percentage will Barun’s age increase during this period?