You create a new user named User

You administer a Microsoft SQL Server 2012 database instance. You create a new user named UserA.
You need to ensure that UserA is able to create SQL Server Agent jobs and execute SQL Server agent jobs owned by UserA
To which role should you add UserA?

A.
DatabaseMailUserRole

B.
ServerGroupAdministratorGroup

C.
SQLAgentUserRole

D.
Securityadmin