The root word for anaerobic is aer or aero, which is basicly meaning air.
Come of age means growing up. When you have more responsibilities, when you're moving from childhood to adulthood and understand more things. When you are changing but not only physically, also mentally. When you are becoming more MATURE.
Answer: The possible answer could be C "ive spoken two languages fluently for many years and have seen the benefits in my life."