When Branch Rickey confronted Jackie with his character flaw, how did Jackie respond?

He refused to change because he was being mistreated.
He told Rickey that he could not change, because that was just part of who he was.
He reassured Rickey that people would eventually accept him because he was a great athlete, in spite of his flaw.
He agreed to work hard to control his outbursts of temper.
He stopped being friends with Rickey, but did as he suggested.