which sentence is punctuated correctly?\nthe aliens suffered from exhaustion, after traveling several light…

which sentence is punctuated correctly?\nthe aliens suffered from exhaustion, after traveling several light - years.\nthey needed some relaxation, when they finally landed their spaceship.\nafter they rested a few days, the aliens revived sufficiently to explore.\nthey needed all their energy, once they started hiking the rough terrain.

which sentence is punctuated correctly?\nthe aliens suffered from exhaustion, after traveling several light - years.\nthey needed some relaxation, when they finally landed their spaceship.\nafter they rested a few days, the aliens revived sufficiently to explore.\nthey needed all their energy, once they started hiking the rough terrain.

Answer

Brief Explanations:

  1. In the first option, a comma should not be placed between "exhaustion" and "after" as the prepositional - phrase "after traveling several light - years" is a dependent clause that should come before the independent clause "The aliens suffered from exhaustion" if it starts the sentence, or not be separated by a comma when it follows.
  2. In the second option, a comma should not be placed between "relaxation" and "when" for the same reason as above.
  3. In the third option, a comma should follow "After they rested a few days" as it is a dependent clause at the start of the sentence.
  4. The fourth option is punctuated correctly. The independent clause "They needed all their energy" is separated from the dependent clause "once they started hiking the rough terrain" with a comma.

Answer:

They needed all their energy, once they started hiking the rough terrain.