Which of the Following Must Be True About Functions in the Duality

Which of the following must be true about functions in the duality picture:

A) The utility function is homogeneous of degree 1.
B) The indirect utility function is homogeneous of degree 1 in income.
C) The uncompensated demand functions are homogeneous of degree 1.
D) Both (a) and (b) .
E) Both (b) and (c) .
F) Both (a) and (c)
G) All of the above.
H) None of the above.