By the time we reach adulthood we have formed a core group of food that contains basic items which account for 75% of our food preferences and intake.
a. 40-50
b. 70-80
c. about 100
d. 120-150

I believe it's C. About 100.

Hopes this helps :)

You did not show us the image of the burger, but i shall try to answer as best i can.  when purchasing food, always consider the ingredients as well as the person who prepared it. consider if they were hygienic people or not, in case the burger was infected with bacteria. no mortal should place an infected burger into their mouth.