Seven people are at the beach for a clambake. They have dug 12.6 pounds of clams. They each eat the following amounts of clams: 0.34 pounds, 1.6 pounds, 0.7 pounds, 1.265 pounds, 0.83 pounds, 1.43 pounds, 0.49 pounds. How many pounds of clams are left?
a. 7.892 pounds
b. 4.56 pounds
c. 5.945 pounds
d. 6.655 pounds