A circuit contains four light bulbs. One light bulb goes out but the other three stays it. This must be an)

circuit

A parallel

B Closed

C series

D open

It is a parallel connection

Explanation:

In parallel connection the

Cell is not easily used up because the cells share the total current generated together with all bulbs.

But a major problem is the bulbs must not be left together undisconnected to avoid exhaustion arising from short fall in the strength of one cell as this bounds to affect others