Let $I = \int_{0}^{1} \frac{\sin x}{\sqrt{x}} \, dx$ and $J = \int_{0}^{1} \frac{\cos x}{\sqrt{x}} \, dx$. Then which one of the following is true?
- A$I > \frac{2}{3}$ and $J > 2$
- B$I < \frac{2}{3}$ and $J < 2$
- C$I < \frac{2}{3}$ and $J > 2$
- D$I > \frac{2}{3}$ and $J < 2$
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