Two different bonds are offered in the market. They both have same liquidity, same tax status and same maturity. Bond A has a yield of 5% while Bond B has a yield of 4%. What can we infer about the credit ratings of these two bonds?

		A) Bond A must have a higher credit rating than Bond B
		B) Bond A must have a lower credit rating than Bond B
		C) Bond A and Bond B must have the same credit rating
		D) We can not infer anything about A and B's credit ratings based on this information