Students in a seventh grade science class are studying the impact of recycling on the environment and are about to engage in a problem-based learning experience. Their teacher presents them with this scenario: "In recent months, the amount of litter and garbage in the community has increased. Fast-food containers and empty bottles litter the area. People discard more itemsbuilding materials and furniturefor bulky trash pickup. Articles of clothing and books are finding their way into garbage cans. A team of researchers for the city sanitation department has been asked to assess the situation, make recommendations, and educate residents about the importance of recycling. You are that team." Several groups conducted interviews with recycling experts from the city. In what step of the problem-based learning experience were the students engaged? Group of answer choices They were brainstorming possible solutions. They were developing a problem solution. They were gathering facts and information. They were developing criteria to evaluate possible solutions