Water rises in a capillary tube to a height such that the upward force of surface tension balances the downward force of $75 \times 10^{-4} \ N$ due to the weight of the water. If the surface tension of water is $12 \times 10^{-2} \ N/m$,the internal circumference of the capillary must be:

• A
  $12.5 \times 10^{-2} \ m$
• B
  $6.5 \times 10^{-2} \ m$
• C
  $1.25 \times 10^{-2} \ m$
• D
  $6.25 \times 10^{-2} \ m$