A.I. Explanation:

Option 1: "To distribute free reusable shopping bags"

Explanation: While the text mentions that the project will distribute reusable bags at no cost, this is a part of the initiative rather than its main goal. The primary aim is broader, focusing on reducing plastic waste, which encompasses more than just the distribution of bags.

Option 2: "To provide discounts at local businesses"

Explanation: The text states that the project will partner with local businesses to provide discounts for customers who bring their own bags. However, this is a supporting action rather than the main goal of the initiative, which is to reduce plastic waste.

Option 3: "To reduce the city's plastic waste"

Explanation: The text clearly outlines that the main goal of the Green Horizon Project's initiative is to reduce plastic waste. This is supported by the overall theme of the text, which emphasizes the importance of cutting down on plastic bag usage and educating the community about the environmental impacts of plastic waste.

Option 4: "To increase the production of plastic bags"

Explanation: This option contradicts the text, which focuses on reducing plastic waste rather than increasing plastic bag production. The initiative aims to promote sustainability, not to contribute to plastic waste.