While computing the Norton equivalent resistance and the Norton equivalent current, which of the following steps are undertaken?

• A. Both the dependent and independent voltage sources are short-circuited and both the dependent and independent current sources are open-circuited
• B. Both the dependent and independent voltage sources are open-circuited and both the dependent and independent current sources are short-circuited
• C. The dependent voltage source is open-circuited keeping the independent voltage source untouched and the dependent current source is short-circuited keeping the independent current source untouched
• D. The dependent voltage source is short-circuited keeping the independent voltage source untouched and the dependent current source is open-circuited keeping the independent current source untouched