Surgeons had to reopen Carla's knee because a surgical sponge had been left inside. This type of error is о a human error
an imaging error.
O
a diagnostic error
a medication error

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.   

Ithink its part b hope that

Carbohydrates,fats and proteins

What subject do you need with?