— （）people visit the 2010 Shanghai World Expo every day
— About 300000.

A．How many

B．How much

C．How long

D．How often

Sometimes floating rate issues have caps and/or floors, which limit the maximum or minimum coupon rate that the issue will pay. Which of the following statements is TRUE with regard to floating rate issues that have caps and floors（）

A. A floor is a disadvantage to both the issuer and the bondholder while a cap is an advantage to both the issuer and the bondholder.

B. A floor is an advantage to both the issuer and the bondholder while a cap is a disadvantage to both the issuer and the bondholder. 

C. A cap is a disadvantage to the bondholder while a floor is a disadvantage to the issuer.