Which of the following statements displays the message "The total due is $$\$ 78.50$$ " on a Web page? (Assume that the $$\$ $$ total variable contains the number 78.5.)
a. print "The total due is \$$total\n";
b. printf "The total due is \$%.2f\n, $total";
c. printf "The total due is \$%.2f\n", $total;
d. printf "The total due is \$total\n", %.2f;