Single stream recycling is a process in which all recyclable materials are mixed together for collection, rather than being sorted by material type and handled separately when collected. In a single stream process, materials are later separated for reuse at a materials recovery facility. Single stream recycling offers greater efficiency in the collection process because it reduces the need for residents to sort recyclable materials, reduces collection costs because single compartment trucks are less expensive, and offers greater flexibility in the type of materials that can be collected and the process by which those materials are collected. There are initial capital costs associated with changing over to a single stream process, including increased processing costs at the materials recovery facility and an increased presence of contaminants, which can lead to an increased amount of rejected material that ultimately ends up in the landfill.

The passage supports which one of the following claims about single stream recycling?

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Single stream recycling offers greater efficiency in processing of recyclable materials.

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Reduced collection costs may be offset by initial capital costs and increased processing costs.

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Residents sort recyclable materials by type for collection and processing at a materials recovery facility.

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Single stream recycling is likely to result in more materials getting recycled after being processed at the materials recovery facility.

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There is less flexibility in the process by which those recyclable materials are collected.