Student or Learner
He was caught in the rain. He regretted not listening to his mother's advice of taking an umbrella to school.
Is "of" correctly used in the sentence?
... his mother's advice to take an umbrella to school. (first choice)
... his mother's advice about taking an umbrella to school. (second choice)
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.