Solver Is Now Present in the Analysis Group on the Data

Multiple Choice

Solver is now present in the Analysis group on the Data tab.What was done to add Solver to the Ribbon?

A) Linear programming options were enabled in Excel Options.
B) All Add-ins were enabled on the Tool menu.
C) The Solver Add-in was enabled from Add-ins on the Tools menu.
D) A what-if analysis was created,which enabled the Solver Add-in.