The equivalent capacitance between P and Q for the infinite series of capacitors shown in the figure is

• A

  $\frac{\mathrm{C}}{2}(\sqrt{3}+1)$
• B

  $\frac{\mathrm{C}}{3}$
• C

  $3 C$
• Correct answer
  D

  $\frac{\mathrm{C}}{2}(\sqrt{3}-1)$

Hence, the correct answer is option: 'D'.