Which sentence contains an error in the use of commas? A. Walking past the store, I noticed the FOR SALE sign. B. The field was still occupied so we couldn't start the game. C. For lunch, we have a choice of soup, sandwiches, or salad. D. You need to use a quick, precise movement.

The reversalists continue their labors, confident that they will one day construct an engine that generates more compression than it uses, a perpetual power source that will restore to the universe its lost vigor. which theme is best supported by the excerpt? a. scientific study requires dedication and perseverance. b. people will always look for a way to achieve immortality. c. death must always be endured alone. d. change is difficult to accept but beneficial if embraced.