The value of $$\frac{{{\text{co}}{{\text{s}}^2}{{60}^ \circ } + 4{\text{se}}{{\text{c}}^2}{{30}^ \circ } - {\text{ta}}{{\text{n}}^2}{{45}^ \circ }}}{{{{\sin }^2}{{30}^ \circ } + {\text{co}}{{\text{s}}^2}{{30}^ \circ }}}$$is?

• A. $\frac{{64}}{{\sqrt 3 }}$$
• B. $\frac{{55}}{{12}}$$
• C. $\frac{{67}}{{12}}$$
• D. $\frac{{67}}{{10}}$$