An Application Owner Certification is primarily used to certify entitlements and roles associated with specific applications. It involves application owners reviewing access within their applications, which is useful for ensuring that access aligns with the intended security policies for that application.

However, in the context of ensuring that roles include the correct entitlements across the entire role model, a more suitable certification type would be a Role Composition Certification. This type specifically focuses on validating the composition of roles, including the entitlements they aggregate.

Therefore, an Application Owner Certification will not fully achieve the goal of ensuring all roles include the correct entitlements. The correct answer is B. No.