What troubled Einstein at the school in Munich?

Correct answer: Strict rules and rote learning

At the school in Munich, Einstein was troubled by the rigid system of discipline and rote learning. The chapter contrasts his questioning and imaginative mind with a system that expected students to obey rules and reproduce accepted information. He wanted education to encourage understanding rather than mere memorisation. Thus, option A is correct. Option B cannot be right because excessive play was not the problem described in the lesson. Option C is unsupported: the text does not say that a shortage of books troubled him. Option D is also a distraction, since music lessons were not identified as the cause of his dissatisfaction. The important idea is that an inflexible teaching method conflicted with his independent intellectual nature.