Which one of the following sentences from the "The Early Days of World War I" article includes a coordinating conjunction?


"Designers studied the pair through periscopes to judge how well the camouflage worked and made adjustments as needed.


"Next, using the pattern plan as a guide, the outline of the camouflage was marked in chalk on the ship like a giant paint-by-numbers kit."


"Next, the dazzled model was placed next to a matching one painted plain gray, and the two were placed in front of various simulated backgrounds of water and sky.