Bond yield and issuance

JRJ Corporation recently issued 10-year bonds at their par value, $1,000. These bonds pay $60 in interest each 6 months; their price has remained stable since they were issued, they still sell for $1,000. Due to additional financing needs, the firm wishes to issue new bonds that would have a maturity of 10 years, a par value of $1,000, and pay $40 in interest every 6 months. If both bonds have the same yield, how many bonds must JRJ issue to raise $2,000,000 cash (ignore flotation costs)?

a. 2,400
b. 2,596
c. 3,000
d. 5,000
e. 4,275