Two transformations are applied to F(x) to obtain G(x)
1) F(x) is multiplied by 2.
Multiplying a function by a magnitude greater than 1 results vertical stretch.
So, F(x) is stretched by a factor of 2.
2) 5 is subtracted from the function value.
Subtraction of a number indicates downward shift.
So, G(x) is obtained from F(x) by stretching it vertically by a factor of 2 and shifting down by 5 units
Thus, option D is the correct answer