Select all that apply If recycling programs pay individuals and a reasonable amount for the collection of recycled raw materials, like aluminum, why do we have any litter at all? Multiple select question. Total economic surplus is greatest when we recycle such that MB > MC. Each additional unit of recyclable materials incurs an additional cost. At some point this money could be spent elsewhere. Some recyclable materials are often discarded in remote areas that make the cost of retrieval very high. Total economic surplus is greatest when we recycle up to the point where MB = MC