we know that
We can enlarge or shrink the function in the y-direction by multiplying the function by a constant.
we have

if
-------> the function enlarge
if
-------> the function shrinks
case A)

------> the function shrinks
case B)

------> the function enlarge
case C)

------> the function enlarge
case D)

------> the function enlarge
therefore
the answer is
