If sin2(x + iy) = A + iB, then value of A is

• A. \(\frac{1}{2}(1+cos2x\:cosh\:2y)\)
• B. \(\frac{1}{2}(1-cos2x\:cosh\:2y)\)
• C. \(\frac{1}{2}(sin2x\:sinh\:2y)\)
• D. \(-\frac{1}{2}(sin2x\:sinh\:2y)\)