Answer:
Option B
Explanation:
$((\log_{2}{9})^{2})^{\frac{1}{\log_{2}{}(\log_{2}{9})}\times\frac{1}{(\sqrt{7})^{\log_{4}{7}}}}$
= $(\log_{2}{9}^{})^{\frac{2\log_{}{2}}{\log_{2}{9}}\times}7^{\frac{1}{2}\log_{7}{4}}$
= $(\log_{2}{9})^{\log_{\log_{}{2}}{9}_{}^{2^{2}}}\times 7^{\log_{7}{2}}$
= 22× 2=8