Question

whicch one of these subtance has a higher melting point than water flour or salt or sugar or all the above

Answer 1

Correct answer would be All of the above

Answer 2

The correct answer is:  [D]:  "all of the above" .
_____________________________________________________
Note:
_____________________________________________________
 Choice [A]:  "flour" ;  and:
_____________________________________________________
 Choice [B]:  "salt" ;   and:
_____________________________________________________
 Choice [C]:  "sugar" ; 
_____________________________________________________
          →  all have a higher melting point than water.
_____________________________________________________
Since:  "Choice [D]:  "all of the above" ; is an option; 
_____________________________________________________
 →  The correct answer is:  Answer choice:  [D]:  "all of the above" .
_____________________________________________________