Two events $E$ and $F$ are independent. If $P(E) = \frac{3}{5}$ and $P(F) = \frac{3}{10}$, then $P(E'/F) + P(F'/E) = \text{ . . . . . . }$
- A$\frac{1}{10}$
- B$\frac{11}{10}$
- C$\frac{9}{10}$
- D$\frac{10}{11}$
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