$A$ solution is to be kept between $68\,^{\circ} F$ and $77\,^{\circ} F$. What is the range in temperature in degree Celsius $(C)$ if the Celsius/Fahrenheit $(F)$ conversion formula is given by $F = \frac{9}{5} C + 32$?
- A$20\,^{\circ} C$ and $25\,^{\circ} C$
- B$15\,^{\circ} C$ and $20\,^{\circ} C$
- C$25\,^{\circ} C$ and $30\,^{\circ} C$
- D$10\,^{\circ} C$ and $15\,^{\circ} C$
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