The function f(x) contains the point P(2,4). If the function f(x) is transformed into the function g(x)=-4f(2x)-5, then point P will be transformed to the point P^!(a, b). The values of a and b, respectively are:

1) 2 and -1

2) 1 and -21

3) 1 and 11

4) 1 and -11