Six similar bulbs are connected as shown in the figure with a DC source of emf E, and zero intermal resistance.
The ratio of power consumption by the bulbs when (i) all are glowing and (ii) in the situation when two from section A and one from section B are glowing, will be:
A. `2:1`
B. `4:9`
C. `9:4`
D. `1:2`