The Illinois Consumer Fraud Act protects buyers from:

A is incorrect because property taxes are a government-imposed financial obligation, not a result of deceptive business practices. The Consumer Fraud Act doesn't protect buyers from tax rates or increases, which are determined by local taxing authorities through legal processes.

C is incorrect because interest rates are determined by market forces, lenders, and the Federal Reserve, not by deceptive real estate practices. While rates can affect affordability, they fall outside the scope of consumer fraud protection in real estate transactions.

D is incorrect because market value fluctuations are natural economic occurrences resulting from supply and demand factors. The Consumer Fraud Act doesn't protect buyers against normal market changes or investment risks.