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.

Gdeinward · Answer

What do you think?

Mercury · Answer

some comma rules that will help narrow down to the right choices:

- comma before a coordinating conjunction (connector of two independent clauses)
- commas between items in a list of 3 or more* (this gets a bit tricky when you consider the Oxford comma)
ex: item 1, item 2, and item 3 or item 1, item 2 and item 3 (both acceptable, just that one has Oxford comma and one does not). 
however, you do not need a comma between 2 items.
- comma when you have a long introductory phrase (usu 4+ words but this is a loose guideilne rather than a strict rule)
- commas around non-restrictive clauses/phrases (if the clause/phrase can be removed and still preserve the meaning of the sentence, you must put commas around it)