A.I. Explanation:

Option 1: "High-tech surveillance systems for security"

Explanation: This option is incorrect because the text does not mention high-tech surveillance systems as part of the Riverdale Neighbourhood Initiative. Instead, the focus is on community-driven efforts and involvement, which are essential for the project's success. The absence of this information in the text indicates that this option is not relevant.

Option 2: "Community involvement in planning and execution"

Explanation: This option is correct as the text explicitly states that a key component of the Riverdale Neighbourhood Initiative is the involvement of local residents in the planning and execution process. This emphasizes that community participation is crucial for ensuring the project meets the needs and aspirations of the residents, aligning perfectly with the main idea of the text.

Option 3: "Importation of exotic plants for gardens"

Explanation: This option is incorrect because the text does not mention the importation of exotic plants. Instead, it discusses transforming neglected spaces into community gardens, focusing on local involvement and sustainable practices. Therefore, this option does not align with the text's emphasis on community-driven efforts.

Option 4: "Development of commercial shopping areas"

Explanation: This option is incorrect as the text does not refer to the development of commercial shopping areas. The initiative is centered around creating community hubs like parks and gardens, which are designed to enhance community engagement rather than commercial development. Thus, this option does not reflect the main focus of the initiative.