If the following quadratic equation has two equal and real roots,then find the value of $k$: $2kx^2 - 8x + k = 0$.
- A$6\sqrt{2}$ and $3\sqrt{2}$
- B$3\sqrt{2}$ and $3\sqrt{2}$
- C$-2\sqrt{2}$ and $2\sqrt{2}$
- D$9\sqrt{3}$ and $2\sqrt{3}$
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