1.)By telling him what he means
2.)By informing him of a situation.
Hope this helps! :)
True.
Explanation:
Sugary foods and drinks that make acids cause tooth decay. They damages the teeth and are also known as junk food.
Hmmmmmm im not saying this is right but I honestly think its the Last one because none of them make sense in the sentence so yeah i think its the last one but im not sure