Answer:
a
Explanation:
It's the only one that makes sense the way you wrote it. I'm assuming the part under A is the rest of the sentence.
Since "leer" means "to read" you would want to say "Yo leo el libra en 30 minutos."
By reading the sentence I would put
A mi maestro le gusta escribir en la pizarra.
But, there are many adjectives in Spanish that would suit this sentence. Tell me if this is what you need, if not let me know....
