Use the diagram below for the question
Opening which switch will turn off only two light bulbs?
A. switch 3
B. switch 4
C. Switch 1
D. switch 2
![Use the diagram below for the question Opening which switch will turn off only two light bulbs A switch 3 B switch 4 C Switch 1 D switch 2 class=](https://us-static.z-dn.net/files/d87/9e5831532c2ce71f4ebcee10cbc372ce.png)