You have a SharePoint Server 2010 server farm.

You have a site named Site1 that has a document library named DocLib1.

You need to configure the security for DocLib1 to meet the following requirements:

* Allow users to add items.
* Allow users to modify items.
* Allow users to approve items.
* Prevent users from deleting items.

What should you do?

A.
Create a new user policy.

B.
Add the users to a new SharePoint group.

C.
Assign a new permission level to the users.

D.
Create a new information management policy.

Explanation:
BURGOS MNEMO: "new permission level"

User permissions and permission levels (SharePoint Foundation 2010)
http://technet.microsoft.com/en-us/library/cc288074.aspx