Although Pearl's mother lived to be $95,$ the last $10$ years of her life were spent in declining health, confined first to a wheelchair and then to a hospital bed. Pearl wonders how many years of vigorous, healthy life she'll have in comparison to her mother. Pearl wants to find out the average $\_\_\_\_\_\_\_\_\_\_$ for someone her age.

Although Pearl's mother lived to be $95,$ the last $10$ years of her life were spent in declining health, confined first to a wheelchair and then to a hospital bed. Pearl wonders how many years of vigorous, healthy life she'll have in comparison to her mother. Pearl wants to find out the average $\_\_\_\_\_\_\_\_\_\_$ for someone her age.

chronological age

functional age

life expectancy

active lifespan