The variation between V-I has shown by graph for heating filament

The graph between E and v is

the correct variation between sqrt(E) and p is shown by

The variation of current (I) and voltage (V) is as shown in figure A . The variation of power P with current I is best shown by which of the following graph

The variation of current (I) and voltage (V) is as shown in figure A . The variation of power P with current I is best shown by which of the following graph

The curves (a) , (b) , ( c ) and (d) show the variation between the applied potential difference (V) and the photoelectric current (i) , at two different intensities of light (I_(1) gt I_(2)) . In which figure is the correct variation shown ?