which sentences correctly use commas? select two options.\n□ washington was a general before becoming…

which sentences correctly use commas? select two options.\n□ washington was a general before becoming president, and jackson was also a general.\n□ for centuries, japan has been ruled by shoguns, and emperors.\n□ two english kings fascinate me, richard lionheart and his brother king john.\n□ mansa musa who ruled mali in the early 1300s was rich and powerful.\n□ after his voyage in 1492, columbus and his men arrived in what they believed to be southeast asia.
Answer
Brief Explanations:
- In the first option, a comma is correctly used to separate two independent clauses joined by "and".
- In the fifth option, a comma is correctly used to set off the introductory pre - positional phrase "After his voyage in 1492". The second option has an incorrect comma usage as "shoguns and emperors" is a compound object and no comma is needed. The third option should not have a comma between the subject "Two English kings" and its appositive "Richard Lionheart and his brother King John". The fourth option is a run - on sentence and needs a comma or other punctuation to separate the clauses if it were to be correct.
Answer:
A. Washington was a general before becoming president, and Jackson was also a general. E. After his voyage in 1492, Columbus and his men arrived in what they believed to be Southeast Asia.