A 3% coupon rate bonds issued in Australia pays couponsA.$30 twice a yearB.$3 once a yearC.$1.5 twice a yearD.$6 in total per year

The coupon rate of a bond is the annual interest rate the issuer will pay to the bondholder. It's expressed as a percentage of the bond's face value.

In this case, the bond has a coupon rate of 3%. This means that for every $100 of the bond's face value, the issuer will pay$3 in interest per year.

Let's go through the options:

A. $30 twice a year: This would mean the bond's face value is$1000 (because $30 is 3$1000) and the issuer is paying interest semi-annually. This is possible if the bond's terms specify semi-annual payments.

B. $3 once a year: This would mean the bond's face value is$100 (because $3 is 3$100) and the issuer is paying interest annually. This is possible if the bond's terms specify annual payments.

C. $1.5 twice a year: This would mean the bond's face value is$100 (because $1.5*2 is 3$100) and the issuer is paying interest semi-annually. This is possible if the bond's terms specify semi-annual payments.

D. $6 in total per year: This would mean the bond's face value is$200 (because $6 is 3$200) and the issuer is paying interest annually. This is possible if the bond's terms specify annual payments.

So, all of the options could be correct depending on the face value of the bond and the frequency of the interest payments.