AHSME 1969 Problem 17

The equation $2^{2x}-8\cdot 2^x+12=0$ is satisfied by: $\text{(A) } log(3) \text{(B) } \tfrac{1}{2}log(6) \text{(C) } 1+log(\tfrac{3}{2}) \text{(D) } 1+\frac{log(3)}{log(2)} \text{(E) none of these}$