You have been feeling very depressed for a long time. which is the best step that you could take to yourself?

give yourself time and the feeling might go away.

share the feelings with a trusted friend.

keep to yourself and mull over your feelings.

I believe the correct answer is "Share the feelings with a trusted friend."

Share your feeling with a friend or doctor, therapist are great for letting everything out, it will help them and possibly prevent suicide.

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.   

Ibelieve the answer is c) our brain jumps to conclusions based on past experience