By going to the brothers house made of brick
I would say the correct answer is girls had laughed a little nervously.
Based on this clause, we can deduce something about their personality, and that is that they are happy kids who want to laugh all the time but they are not allowed to. The other options are either direct characterization or not characterization at all.
She wants to join the college her family all went through " Science University ". She does not want to go to "The University of Prestigious Writing ".
