You are planning an Office 365 pilot.
You need to ensure that the environment is ready for Office 365.
Which tool should you use? make sure that your environment is prepared for the Office 365 services. It can find settings in your existing environment that might cause problems when you start to set up or use your services. This will allow you to fix or work around the potential problems to make your deployment path easier to complete.

A.
Microsoft Connectivity Analyzer

B.
Office 365 Best Practices Analyzer

C.
Remote Connectivity Analyzer

D.
Office 365 Health, Readiness, and Connectivity Checks

Explanation:

Running Office 365 Health, Readiness, and Connectivity Checks prior to setting up Office 365 allows you to
References: https://support.office.com/en-us/article/Office-365-readiness-checks-c01571b8-183e-4a61-9ca0-
80729a48bbda