The diagram shows four capacitors with capacitances and break down ...

The diagram shows four capacitors with capacitances and break down voltages as mentioned. What should be the maximum value of the external emf source such that no capa itor breaks down? [Hint: First of all find out the break down voltages of each branch. After that compare them.]
(A) \( 2.5 \mathrm{kV} \)
(B) \( 10 / 3 \mathrm{kV} \)
(C) \( 3 \mathrm{kV} \)
(D) \( 1 \mathrm{kV} \)
\( \mathrm{P} \)
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