The ten switches A,B,C,D,E,F,G,H,N,M are placed in the given circuit (all are open at given time). If you close one switch you need to pay 1 unit cost. What is the cost you need to pay to glow this Lamp?

• A. 1 unit
• B. 2 units
• C. 3 units
• D. 4 units
• E. . If you close one switch you need to pay 1 unit cost. What is the cost you need to pay to glow this Lamp?a) 1 unitb) 2 unitsc) 3 unitsd) 4 units