Answer:
4
Explanation:
It has 8 O atoms and 4 O2(g) molecules
It’s will be B because the circuit had a open or close so if that doesn’t work than it’s because it’s open
I personally would live on Mars cuz that is red cuz
Considering the unknown resistence as R and using the Ohm's First Law, we have:
The equivalent resistence is given by the resistor series with the lamp resistence.

If you notice any mistake in my english, please let me know, because i am not native.