Electric current flows through three lamps when arranged in $(a)$ a series and $(b)$ a parallel circuit. If the filament of one lamp breaks,explain what happens to the other two lamps in both cases.

• A
  In a series circuit,the other two lamps will stop glowing.
• B
  In a parallel circuit,the other two lamps will continue to glow normally.
• C
  In a series circuit,the other two lamps will glow brighter.
• D
  In a parallel circuit,the other two lamps will stop glowing.