Determine Thevenin Equivalent circuit parameters for the given circuit.

• A. Vth = 25 V, Rth = 20 Ω
• B. Vth = 50 V, Rth = 25 Ω
• C. Vth = 50 V, Rth = 20 Ω
• D. Vth = 100 V, Rth = 20 Ω