Extended Producer Responsibility (EPR) is an environmental policy concept where manufacturers take significant responsibility for the environmental impact of their products throughout the product life cycle.
Step 1: Understanding EPR.
EPR primarily focuses on the post-consumer stage of the product — meaning the producer is responsible for collection, recycling, or disposal once the consumer discards the product.
Step 2: Evaluate options.
(B) and (C) refer to manufacturing or pre-market responsibility, which are not part of EPR.
(D) includes full life-cycle management, but EPR specifically focuses on responsibility \textit{after} the end of product life (waste stage), not during use.
Therefore, option (A) correctly defines EPR.
Final Answer: (A)