The Following Code Retrieves the Radio Button Collection for a Group

Multiple Choice

The following code retrieves the radio button collection for a group of radio buttons where "ethnicity" is the name of the radio button group:
EthnicityRBs = form.elements["ethnicity"];
How can you retrieve the selected radio button's value?

A) ethnicityRBs.selection
B) ethnicityRBs.value
C) ethnicityRBs.getValue(0)