The following word group may be a run-on sentence (a comma splice or a fused sentence). If it is, choose the answer that corrects the run-on. If the word group is not a run-on, choose "This sentence is not a run-on."
The ancient Egyptians, Greeks, and Romans used small lead discs, precursors of the modern pencil, to make lines on sheets of papyrus, then they wrote on the papyrus with ink and a brush.
A. This sentence is not a run-on.
B. The ancient Egyptians, Greeks, and Romans used small lead discs, precursors of the modern pencil, to make lines on sheets of papyrus, then, they wrote on the papyrus with ink and a brush.
C. The ancient Egyptians, Greeks, and Romans used small lead discs, precursors of the modern pencil, to make lines on sheets of papyrus, next they wrote on the papyrus with ink and a brush.
D. The ancient Egyptians, Greeks, and Romans used small lead discs, precursors of the modern pencil, to make lines on sheets of papyrus; then, they wrote on the papyrus with ink and a brush.
