Which two are true?

Given an EL function declared with:

Which two are true? (Choose two)

A.
The function method must have the signature:
public String spin().

B.
The method must be mapped to the logical name “spin” in the web.xml file.

C.
The function method must have the signature:
public String spinIt().

D.
The function method must have the signature:
public static String spin().

E.
The function method must have the signature:
public static String spinIt().

F.
The function class must be named Spinner, and must be in the package com.example.