Researchers published a study that investigated the degree to which a country's households waste food. The researchers used data from 3,792 households to measure the percentage of food acquired that is wasted. What was the purpose of the study?
1) To determine the average percentage of food wasted by households in different countries
2) To analyze the factors contributing to food waste in households
3) To compare the food waste practices of urban and rural households
4) To propose strategies for reducing food waste in households