What achievement revealed Bernardo Alberto Houssay's intelligence as a boy?

Question

(1 point)
Responses

He wrote his first book before he was 10 years old.
He wrote his first book before he was 10 years old.

He was admitted to the university at age 14.
He was admitted to the university at age 14.

He learned to read and write at age 4.
He learned to read and write at age 4.

He knew more than his parents.
He knew more than his parents.

Answer 1

The achievement that revealed Bernardo Alberto Houssay's intelligence as a boy was that he learned to read and write at age 4.