If 7 × \(\left( cose{{c}^{2}}55{}^\circ -{{\tan }^{2}}35{}^\circ \right)+2\sin 90{}^\circ -y{{\tan }^{2}}52{}^\circ {{\tan }^{2}}38{}^\circ =\frac{y}{2},\) then the value of y is:

• A. 6
• B. 2
• C. 1
• D. 3