C. between 47% to 50% D. between 50% to 53% Ans: A Headmaster (Secondary School) -2018 Work Participation Rate (WPR) is a crucial demographic indicator. It is usually defined as the percentage of the population that is economically active (employed or seeking employment). It can be calculated for the total population, or separately for males and females. It's important to know whether the rate is based on the total population or the working-age population.