Teenagers Have More Frequent Unemployment Spells So,on Average,they Spend More

Teenagers have more frequent unemployment spells so,on average,they spend more time searching for jobs.Other thing the same,this means that teenagers have a

A) higher unemployment rate.If a larger portion of the adult population were teenaged,the natural rate of unemployment would be higher.
B) higher unemployment rate.The portion of the adult population that is teenaged does not affect the natural rate of unemployment.
C) lower unemployment rate.If a larger portion of the adult population were teenaged,the natural rate of unemployment would be lower.
D) lower unemployment rate.The portion of the adult population that is teenaged does not affect the natural rate of unemployment.