Answer:
translated to "what breaks without being touched?"
answer to the riddle; a promise, or even silence
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".
the only difference between –er verbs and –ir verbs is the nosotros and vosotros forms.
<u>Example: Vivir (to live)</u>
<u>Nosotros:</u> vivimos
<u>Vosotros: </u>vivís
<u>Example: Volver (to return)</u>
<u>Nosotros:</u> volvemos
<u>Vosotros:</u> volvéis