Correct option is A
The incorrectly spelled word is "amature." The correct spelling is "amateur."
Meanings of the words given:
Amateur: a person who engages in a pursuit, especially a sport, on an unpaid basis.
Apparently: as far as one knows or can see.
Committed: feeling dedication and loyalty to a cause, activity, or job; wholeheartedly dedicated.
Disciplined: showing a controlled form of behavior or way of working.