Answer:
Buddy, no one is going to watch a whole movie and write a full analysis report on it. You are gonna have to do this one on your own.
Hello. You did not inform which article this question refers to, which prevents it from receiving an exact answer, however, I will try to help you in the best possible way.
When a student eats properly, receiving appropriate energy from food, that student has optimal health. This allows the student to be more attentive, willing, more proactive within the school, without appearing sleepy or lacking energy. In this case, an author who wants to show how school meals have improved students' health, should show this type of improvement as evidence of his statement.
The answer is
Yet.
A coordinated conjuction is a word that joins or coordinates two senteces together, in this case the word yet is conectint he was but a child, and giving meaning to the whole sentece by conecting to he did so much for others, if you read it without the yet, the sentence looses force in the statement.