Comprehensive and Detailed Explanation From Exact Extract:

The Waste Electrical and Electronic Equipment (WEEE) Directive is a regulatory framework (particularly within the European context) focused on managing electronic waste. Its primary goal is to ensure that electrical and electronic equipment is:

Collected separately from general waste

Properly treated, including removal of hazardous components

Reused, recycled, or recovered to the greatest extent feasible

The directive places responsibilities on manufacturers, distributors, and importers to:

Organize or finance the collection and recycling of used electronic products.

Reduce the volume of electronic waste going to landfills.

Encourage product design that facilitates recycling and reduces hazardous content.

Why the other options are incorrect:

B. Setting product replacement policies for electronic devicesReplacement policies are determined by companies or internal IT policies, not by WEEE. WEEE focuses on end-of-life handling and recycling, not when a product must be replaced.

C. Certifying materials in high-efficiency batteries for electronicsThis is closer to material or product safety regulations and energy storage standards, not the scope of WEEE itself.

D. Promoting energy-saving components in electronic devicesEnergy efficiency is more directly related to directives or standards focused on energy use and efficiency, not the specific waste management focus of WEEE.

Accordingly, Option A correctly states the primary focus of the WEEE Directive as managing the collection and recycling of used electronic products.