Tanya,a Tenant,gave Lou,her Landlord,a $1,000 Security Deposit When She Moved

Tanya,a tenant,gave Lou,her landlord,a $1,000 security deposit when she moved in.When she moved out four years later,Lou withheld $500 from Tanya's deposit because the carpet was 50% worn out.This was the only damage in the apartment.The carpet has a normal useful life of eight years,and it costs $1,000.How much of the security deposit was Lou entitled to withhold?

A) $500,because wear and tear is the responsibility of the tenant.
B) Nothing;Tanya should replace the carpet before moving out.
C) Nothing,because the wear and tear here was ordinary and reasonable.
D) The entire value of the carpet,i.e. ,$1,000.