Correct option is A
According to the question,
C's first movement:
C walks 2 km North from the post office:
Position: (0,2).
C's second movement:
C turns right (East) and walks 5 km :
Position: (5,2).
Determine the final position of D :
D's first movement:
D walks 5 km East from the post office:
Position: (5,0).
D's second movement:
D turns right (South) and walks 6 km :
Position: (5,-6).
Relative position of D with respect to C :
· C 's final position: (5,2).
· D 's final position: (5,-6).
· Difference in the -coordinates: 2-(-6) = 8 km South.
Hence, It is clear from the above path diagram that D is 8 km south of C.