Which of the following would be an acceptable first step in simplifying the expression (sinx)/(1 + sinx) ?
A1/(cscx + sinx)
Bsinx + 1
C(sinx(1 - sinx))/((1 + sinx)(1 - sinx))
A1/(cscx + sinx)
Bsinx + 1
C(sinx(1 - sinx))/((1 + sinx)(1 - sinx))