Víctor compares the countryside and the city - how many of the following statements are true?

Here is the text:

Mi padre y yo vivíamos en la paz y tranquilidad del campo. Yo iba al instituto andando. Mi padre pasaba el día trabajando en nuestra granja. Dormíamos bien porque los únicos sonidos venían de los pájaros y los ríos.

a) Víctor’s father drove him to school.

b) Víctor’s father was a farmer.

c) It was too quiet for Víctor to sleep

Is it one of them? Two of them? All of them? Or none of them?

The answer is one of them is true. The text translates to:

My father and I lived (or used to live) in the peace and calmness of the countryside. I went to school on foot (walking). My father spent the day working on our farm. We slept (used to sleep) well because the only sounds came from the birds and the rivers.

Therefore, his father didn't drive him because it says he walked, "Yo iba al instituto andando" from the verb "andar" to walk, and iba from "ir" to go. So, a) is false. Victor's father was a farmer because he worked "trabando" from "trabajar" to work on their "granja", their farm. So, b) is true. And they did sleep (and slept well), "dormíamos bien" from the verb "dormir". Which is another false answer, leaving only one true.