The most common Data Matching Issues (DMIs) are related to income, citizenship, and immigration status. The customer will have _________ to resolve the DMI.

The correct choice is 90 days for customers to resolve Data Matching Issues (DMIs) related to income, citizenship, and immigration status. This timeframe allows customers the necessary duration to gather the required documentation and information to address any discrepancies effectively.

This extended period is essential because resolving these issues often involves collecting various forms of proof, such as tax returns, immigration documents, or other records that may not be immediately available. Providing 90 days ensures that individuals have adequate time to verify their information without rushing, which could lead to mistakes or incomplete submissions. Consequently, this approach promotes a more accurate and fair verification process while ensuring that customers maintain access to health coverage as they navigate through these necessary steps.