In the circuit above R is a resistor whose resistance increases with increases with increase in temperature L₁ and L₂ are identical lamps. If the temperature of R increases

• A.L₁ becomes brighter and L₂ becomes dimmer
• B.L₁ becomes brighter and L₂ does not change
• C.L₂ becomes dimmer and L₁ does not change
• D.L₁ becomes dimmer and L₂ does not change
• E.L₁ and L₂ becomes brighter