Relationships between economic variables can be expressed in the form of?

Option D)     Any of the above

OPTION D ........................................................................................

 d. >>>>>>>>>>>>>>>>>>>>> any of the above. 

Choice D, any of the above is the right answer

Correct answer is 

D-Any of the above

D------------------------------------------

1. Relationships between economic variables can be expressed in the form of The correct answer was: d. any of the above.. 

My answer is also option (D)

Any of the above can be the answer............................

Answer will be option ____________d