Seven capacitors each of capacitance 2 µF are connected in a configuration to obtain an effective capacitance $\frac{10}{11}$ µF. Which of the following combination will achieve the desired result be ?

In series, $C=\frac{C_1 C_2}{C_1+C_2}$ ∴  $C_{net}=\frac{(10)(1)}{10+1}=\frac{10}{11} \mu F$