Compared to Younger Children,those in Middle Childhood

Compared to younger children,those in middle childhood

A) use less complex grammar,but longer sentences.
B) are more serious and therefore have more difficulty understanding the punch lines in jokes.
C) are more likely to realize that what people say is not always what they mean.
D) are less likely to use conditional sentences (e.g.,If you do this,I will do that…) because they know that it may be interpreted negatively.