"The percentage of Covid-19 cases and the number of deaths" is a compound subject that is plural. Therefore, it requires a plural verb. The phrase "is reflection" should be replaced with "are reflective" to ensure subject-verb agreement.
The correct phrasing is: "are reflective of the level of spread". This maintains both subject-verb agreement and the proper use of adjectives. The other options do not correctly match the plural subject or use appropriate phrasing.
The correct answer is: "are reflective of the level of spread."
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?