If tan (11 )=cot (7 ), then what is the value of sin2(6 ) + Sec2 (9 ) + cosec2(12 )?

• A. $$ {23 over 6}$$
• B. $$ {35 over 12}$$
• C. $$ {31 over 12}$$
• D. $$ {43 over 12}$$