You perform the basic configuration of a SharePoint site to support SharePoint apps. You
need to configure policy settings for SharePoint apps to ensure that users can browse apps
in the Office Store but cannot purchase apps without approval. Which two actions should
you perform? (Each correct answer presents part of the solution. Choose two.)

A.
In Central Administration, configure the Office and SharePoint store settings to restrict
app purchases.

B.
Purchase and configure a wildcard SSL certificate for the domain from a third-party
Trusted Root Certification Authority (CA).

C.
In Central Administration, specify the URL to the App Catalog site.

D.
In each site collection, configure the site app permissions to restrict app purchases.

E.
Restrict the users and groups that have Approve permissions on the App Catalog site.

Explanation:
Configure app requests and SharePoint Store settings Farm administrators can
determine whether users can purchase apps from the SharePoint Store. This setting is at the
web application scope. If users cannot purchase apps, they can still browse the SharePoint
Store, and request an app. Farm administrators and the App Catalog site owner can view
and respond to app requests.
To configure SharePoint Store settings
Verify that the user account that is performing this procedure is a member of the Farm
Administrators group.

(A) In Central Administration, on the Apps page, in the SharePoint and Office Store section,
click Configure Store Settings.
On the SharePoint Store Settings page, verify that the selected web application is the web
application that you want to configure.
If you want to switch to a different web application, click the down arrow next to the web
application URL to change to a different web application. (C)
To allow or prevent purchases, select an option for Should end users be able to get apps
from the SharePoint Store?
To allow or prevent apps for Office from the Office Store to be started when a user opens a
document in the browser, select an option for Should apps for Office from the store be able
to start when documents are opened in the browser?
Click OK.
Reference: Manage the App Catalog in SharePoint 2013