The expansion of f(x, y) = ex ln(1 + y), is

• A. f(x,y) = y + xy – y2⁄2 +…….
• B. f(x,y) = y – xy + y2⁄2 -…….
• C. f(x,y) = y + x – y2⁄2 +……..
• D. f(x,y) = x + y – x2⁄2 +……..