Product reviews help to alleviate problems associated with:

A) asymmetric information.
B) moral hazard.
C) positive externalities.
D) negative externalities.

Asymmetric Information

A situation where one party in a transaction has more or superior information compared to another, often leading to an imbalance in the transaction.

Product Reviews

Evaluations or assessments of a product's performance, quality, and usefulness, typically written by consumers or experts.