Copado Extensions Custom Metadata Types can be defined as:

Comprehensive and Detailed 100to 150 words of Explanation From Copado Extension builder topics:

Copado Extensions Custom Metadata Types are used to package configuration-like records as metadata instead of ordinary data records. Option B is correct because Custom Metadata Types allow developers to define records that can be included in packages and deployed across orgs. This is important for Copado Extensions because extension-related configuration must be transportable and installable in another Copado environment. When building an extension, records such as extension configuration details can be represented through custom metadata so they behave like packageable setup data. Option A is too general and does not capture the key distinction between metadata records and data records. Option C describes metadata monitoring, which is unrelated. Option D is also incorrect because Custom Metadata Types are not simply a container for non-profile metadata components.