Expansion of y = Sin-1(x) is?

• A. (x+ frac{x^3}{6}+ frac{3}{40} x^5+ frac{5}{112} x^7+ .. )
• B. (x- frac{x^3}{6}+ frac{3}{40} x^5- frac{5}{112} x^7+ .. )
• C. ( frac{x^3}{6}- frac{3}{40} x^5+ frac{5}{112} x^7 .. )
• D. (x+ frac{x^2}{6}+ frac{3}{40} x^2+ frac{5}{112} x^2+ .. )