Answer :
Final answer:
The sentence should be punctuated as 'Regan, Katrina, and I watched the amazing sight above us.' Commas are correctly used to separate the list of subjects in the sentence. Therefore, the correct answer is option A.
Explanation:
The correct way to punctuate the sentence is option (a): Regan, Katrina, and I watched the amazing sight above us. In English punctuation, when you have a list of three or more items or people, you use a comma after each item except the last one, which is preceded by 'and.' This is known as the Oxford comma or the serial comma. It is important to include commas to clarify the list of subjects, which in this case are 'Regan,' 'Katrina,' and 'I.'
Examples of correctly using commas and the Oxford comma include:
- There were three people ahead of us in line.
- Under the table are a newspaper and a magazine.
The use of commas helps ensure the reader understands each individual element within a list.
