Your network contains a server named Server2 that has Microsoft SharePoint Foundation 2010 Service Pack 1 (SP1) installed.

You have a site collection named Sitecollection1.

The groups in SiteCollection1 are shown in the exhibit.

You need to ensure that a user named Userl can perform the following tasks:
* Add personal Web Parts to the Web Part Pages in SiteCollection1.
* Remove personal Web Parts from the Web Part Pages in SiteCollection1.

The solution must minimize the number of permissions assigned to User1.

To which group should add User1?

Exhibit:

A.
Sitecollection1 Members

B.
Sitecollection1 Designers

C.
Sitecollection1 Owners

D.
Sitecollection1 Visitors