How could the adoption of blockchain within a supply chain help the world become more sustainable and, in some cases, eco-friendly?

 How could the adoption of blockchain within a supply chain help the world become more sustainable and, in some cases, eco-friendly?

A.  Consumers will be able to store their personal identifiable information for recurring purchases.
B. Consumers could still purchase items at a store even if they forgot their wallet and phone at home.
C. Consumers could easily return and get refunds for products that didn't meet their expectations.
D. Consumers will be able to effectively track where the components of their product were sourced.

 Adopting blockchain within a supply chain can help the world become more sustainable and eco-friendly by enabling effective tracking of the components of a product's supply chain. Blockchain provides a transparent and immutable ledger that records every transaction and movement of goods along the supply chain. This enables consumers to trace and verify the origin of each component or ingredient used in a product.

By having visibility into the sourcing of components, consumers can make more informed choices and support sustainable practices. They can favor products that use responsibly sourced materials, minimize environmental impact, and promote fair labor practices. This transparency can incentivize companies to adopt sustainable and eco-friendly practices throughout their supply chains, as they are accountable to consumers who prioritize sustainability.

The correct answer is:

D. Consumers will be able to effectively track where the components of their product were sourced.

Options A, B, and C mentioned in the question are not directly related to the sustainability aspect of blockchain adoption in supply chains. They focus more on consumer convenience and personal transactions rather than the environmental or social impact of the supply chain.