Problem: Both the QALY and DALY methods seek to extend measures of health outcomes beyond mortality alone. What are the key differences between these methods? Group of answer choices QALY focuses on the positive aspects of health, measuring the number of years lived in perfect health, while DALY combines both positive and negative aspects of health but does not consider the quality of life. QALY and DALY are identical methods and can be used interchangeably to measure health outcomes beyond mortality. QALY measures the number of years of life lost due to disability, while DALY combines both mortality and morbidity but does not account for the quality of life during those years. QALY measures the quantity and quality of life by assigning utility values to different health states, while DALY combines years of life lost due to premature death with years of healthy life lost due to disability or illness.