Find the Laplace transform of the signal x(t) = e-2t cos (200 t)u(t).

• A. ( frac{s}{s^2+(200 )^2} )
• B. ( frac{s}{s^2-(200 )^2} )
• C. ( frac{s-2}{(s-2)^2+(200 )^2} )
• D. ( frac{s+2}{(s+2)^2+(200 )^2} )