Choose the correct option of the sentence in reported speech.
They said "We are going to visit our parents on Sunday".

• They said \(that\) they was going to visit their parents on Sunday.
• They said \(that\) they are going to visit their parents on Sunday.
• They said \(that\) they were going to visit their parents on Sunday.
• They said \(that\) they went to visit their parents on Sunday.