Answer:
They both use expressions to depict tone.
They both show a warm and playful mood.
Explanation:
Boys from the pictures are both using a facial expression which is allowing people to see what kind of tone is the subject( both boys) set. That is why the third answer is the correct one and the first answer is not. They are not using body language, they are using facial expressions.
Both pictures are showing a warm and playful mood, both are smiling children that want to play. Since this answer is also correct, we can say that the second answer is incorrect because the pictures are not showing anything dark and mysterious.