100
Which sentence is coorect?
a. A ball, a colored pencil, a plastic frog, and a piece of paper was left in the box.
b. A ball, a colored pencil, a plastic frog, and a piece of paper had left in the box.
c. A ball, a colored pencil, a plastic frog, and a piece of paper is left in the box.
d. A ball, a colored pencil, a plastic frog, and a piece of paper were left in the box.
d. A ball, a colored pencil, a plastic frog, and a piece of paper were left in the box.