Read the passage and answer the question that follows.
The concept of 'urban farming' is rapidly transforming city landscapes. Instead of relying solely on produce transported from rural areas, cities are creating their own green spaces on rooftops, in abandoned warehouses, and on vertical walls. These initiatives not only provide residents with fresh, locally-grown food but also help reduce carbon emissions from long-distance shipping. Furthermore, community gardens foster social connections among neighbors and offer educational opportunities for children to learn where their food comes from. While it cannot replace traditional agriculture entirely, urban farming is a significant step towards more sustainable and resilient cities.
What is the main purpose of this passage?
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A
To argue that traditional farming is no longer necessary.
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B
To compare the nutritional value of urban- and rural-grown produce.
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C
To describe the methods and benefits of growing food in cities.
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D
To provide a detailed guide on how to start a rooftop garden.