7. A sea food restaurant placed a suggestion box at their counter. When they read the costumers' suggestions, they noticed that most of them love their menu, but they suggest that the restaurant serve desert (gelatin, candy or any delicacy) that could counteract the not so good smell of breath that they have after eating sea foods. Regularly they are serving fruit gelatin but this time, they want to test gelatin with lemon grass and find out if this would be a good solution to the problem. Which is the independent variable?


A. The presence of lemon grass in fruit gelatin.


B. The odor of the breath.


C. The amount of gelatin.



D. The comments of the costumers​