Fill in the blank (_) in the following sentence from the following choices.
Sentence: Brian had a greater wisdom than Donald because _ was younger and had been through a lot less in life.

Choice 1: Brian had a greater wisdom than Donald because Brian was younger and had been through a lot less in life.
Choice 2: Brian had a greater wisdom than Donald because Donald was younger and had been through a lot less in life.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2. The sentence as written is incorrect, and the correct version would be "Brian had a greater wisdom than Donald because Donald was younger and