You are the system administrator for a company that has an office 365 tenant. Contoso.onmicrosoft.com is the only configured domain.

You have an on premises Active directory domain services (AD DS) single forest domain named contoso.local. The user principal name (UPN) for all users includes the suffix @contoso.local.

You also have an on premises Microsoft exchange server 2016 environment that uses @contoso.com as the primary SMTP address suffix domain.

You need to deploy Azure Active Directory (Azure AD) Connect.

Which three actions should you perform in sequence?

1. Add contoso.local as a custom domain in the office 365 tenant.

2. Verify the contoso.local custom domain.

3. Change UPN for all users to costoso.com and install Azure AD Connect using express settings.

4. Install Azure AD Connect using express settings.

5. Add contoso.com as a custom domain in the Office 365 Tenant.

6. Verify the contoso custom domain.