Both Peter and Anne don't get along with their mothers mainly because of the generation gap seprating teenagers and parents. Peter is embarrassed with his mother because she fights with the father in front of everyone. Anne and Margot understand their mother tries her best, but Anne is still much closer to her father as he teaches her, laughes with her, and is overall a more relax kind of parent. Margot's and Anne's mother is more strict as she scolds them when making noice in the Annex.
Answer: C) if we have free time in the afternoon.
The structure of the given sentence above is a simple sentence. It is a simple sentence because it only contains an independent clause. A simple sentence is a structure of a sentence that contains a subject and a verb. The subject and the verb can either be single or compound.