Two soap bubbles coalesce to form a single bubble. If $V$ is the subsequent change in volume of contained air and $S$ change in total surface area, $T$ is the surface tension and $P$ atmospheric pressure, then which of the following relation is correct?

  • [JEE MAIN 2014]
  • A

    $4PV+3ST = 0$

  • B

    $3PV+4ST = 0$

  • C

    $2PV+3ST = 0$

  • D

    $3PV+2ST = 0$

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  • [JEE MAIN 2021]