A network N consists of resistors, independent voltage and current sources. The value of its determinant based on the loop analysis:1. cannot be negative2. cannot be zero3. is independent of the values of voltage and current sources4. dependent on the values of the resistances and the voltage and current sources

• A. 1, 2 and 3
• B. 1, 2 and 4
• C. 1, 3 and 4
• D. 2, 3 and 4