Talking to friends and classmates is easy for a lot of teenage boys, but talking to parents is more difficult. Many teenage boys would like to talk to their fathers about their feelings, but they don’t know how. Sons often want to know how their fathers feel about them. For example, I would like my father to say that he is proud of me. However, my father never talks about his feelings. He only wants to talk about sports or my schoolwork. Parents have to talk to their kids about their feelings, or their children will feel lonely at home.
in the above paragraph, what's the function of the concluding sentence?
A、It restates the topic sentence.
B、It makes a prediction
C、it makes a suggestion.
D、it summarizes the paragraph