(03.01 LC) Read and then choose the option with the correct answer.

¡Hola, amigos! Me llamo Julián. En la clase de biología, aprendí sobre el doctor Baruj Benacerraf. Benacerraf estudió inmunología por su enfermedad de no respirar bien.

According to the text, how did Julián learn about Dr. Benacerraf?

Through a hospital visit
Through a family vacation
Through his class in school
Through his own illness