Answer :
B. Our parents found the girls and us at the information desk.
The way to see if it works is by removing the other pronouns and names and see if the sentence still works. "Our parents found us at the information desk." is the only one that still makes sense, so it is the correct answer.
The way to see if it works is by removing the other pronouns and names and see if the sentence still works. "Our parents found us at the information desk." is the only one that still makes sense, so it is the correct answer.