Good morning. Ms/Mrs. ____
The answer is "Yo"
this is the answer because "Laura" is saying her opinion.
Not "nosotros"(we) because she is talking about herself.
Not "tu"(you) or "ellas"(they fem.)because it doesn't match up with the verb used in the sentence "creer".
Answer:
surfear es más divertido que pescar o remar por las actividades geniales que puedes hacer con él traducido.