How will the reading in the ammeter A of Fig. be affected if another identical bulb Q is connected in parallel to P as shown. The voltage in the mains is maintained at a constant value. 

 

• A

  The reading will be reduced to one-half. 

• B

  The reading will not be affected.

• C

  The reading will be double of the previous one.

• D

  The reading will be increased fourfold.