In cities with rent​ controls, the actual rents paid can be higher than the legal maximum. One explanation for this is A. rent control laws are so complicated that landlords and tenants may not be aware of what the legal price is. B. because there is a shortage of​ apartments, tenants often are willing to pay rents higher than the law allows. C. the legal penalty landlords face for charging more than the legal maximum rent is less than the revenue earned by charging their tenants more than the maximum rent. D. landlords are allowed to charge more than the legal maximum on some apartments so long as they charge less on others.