Read the paragraph.
(1) Students, who participate in the science activity, will need to wear safety goggles. (2) The counter that is on the south side of the science classroom has a variety of safety goggles. (3) The experiment, which has been used by teachers for years, shows how gases have volume. (4) Baking soda and vinegar are put into a bottle, and then a balloon is attached to the bottle. (5) The chemical reaction that occurs when baking soda and vinegar meet causes gas to inflate the balloon.
Which revision corrects the punctuation error in the paragraph?
A. Remove the commas after Students and activity in sentence 1.
B. Add commas after counter and classroom in sentence 2.
C. Remove the commas after experiment and years in sentence 3.
D. Add commas after reaction and meet in sentence 5.