It is important that public service provision should be measured. There are different criteria one can use to do so. These are effectiveness, efficiency and ensuring affordability (most economical way). What would you say is the best way to describe the effectiveness of a public service? a. The means (right techniques or methods) used to achieve the end goal. b. The desired aim has been achieved. c. The checking for the uncovering of what was improperly done. d. The lowest cost at which a service is provided