Find functions f and g so that f o g = H H(x)= |2x+1| Choose correct pair of functions a) f(x)=|x|, g(x)= 2x+1 b) f(x)= 2x+1, g(x)=|x| c) f(x)= x-1/2, g(x)= |-x| d) f(x)= |-x|. g(x)= x-1/2