Which sentences correctly use commas? Select two options.

Washington was a general before becoming president, and Jackson was also a general.

For centuries, Japan has been ruled by shoguns, and emperors.

Two English kings fascinate me, Richard Lionheart and his brother King John.

Mansa Musa who ruled Mali in the early 1300s was rich and powerful.

After his voyage in 1492, Columbus and his men arrived in what they believed to be Southeast Asia.

Question

Which sentences correctly use commas? Select two options.

Washington was a general before becoming president, and Jackson was also a general.

For centuries, Japan has been ruled by shoguns, and emperors.

Two English kings fascinate me, Richard Lionheart and his brother King John.

Mansa Musa who ruled Mali in the early 1300s was rich and powerful.

After his voyage in 1492, Columbus and his men arrived in what they believed to be Southeast Asia.

Vocaloid · Answer

some hints:
- use a comma after an independent clause, followed by a conjunction, followed by another independent clause
- use a comma after an introductory clause 
- use a comma to separate a restrictive phrase
- use a comma to separate three or more items in a list (be mindful that both the Oxford comma and not using the Oxford comma are both technically acceptable)