identify the nutrient a meal of lentils and carrots is most likely to contain in significant amounts?

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.   

So that you don't get baby's but also prevents stis such as hiv