An administrator has found a free app on the AppExchange and would like to install it. Which three items should the administrator take into consideration before installing the managed package? (Choose three.)

A. Apps may require certain Salesforce editions or features to be enabled.
B. Apps may require external, third-party web services to function properly.
C. Managed apps do not undergo a formal security review by Salesforce.
D. Custom objects and custom fields used by the app count against the org's limits.
E. Apps must be installed in production before the app can be installed in a sandbox.

Suggest answer: ABD

Reference: