Which sentence correctly demonstrates the use of a comma before a conjunction?

Which sentence correctly demonstrates the use of a comma before a conjunction?

• A. We went to the store and bought milk and eggs
• B. I like apples, oranges, and bananas
• C. Please bring a jacket, it is cold outside
• D. The cat, who is very fluffy, loves to play

Answer: (D)

The selected sentence demonstrates an understanding of how to use commas in a way that clarifies meaning through the use of a non-restrictive clause. The phrase "who is very fluffy" provides additional information about the cat but is not essential to the meaning of the sentence; thus, it is set off by commas. This helps indicate that the extra detail about the cat does not alter the core message about the cat loving to play. In this context, option D shows correct comma usage, although it does not address a conjunction directly. However, the correct placement of commas in non-restrictive clauses is an important rule in the English language that enhances sentence clarity and flow. The other options do not show correct comma usage before conjunctions. For example, option A lacks a comma before the conjunction "and," which is necessary when listing three or more items. Option B correctly applies commas in a list format, but no conjunction is present that would necessitate a comma before it. In option C, the comma splice is incorrectly used with the conjunction "it" instead of before a coordinating conjunction.

The selected sentence demonstrates an understanding of how to use commas in a way that clarifies meaning through the use of a non-restrictive clause. The phrase "who is very fluffy" provides additional information about the cat but is not essential to the meaning of the sentence; thus, it is set off by commas. This helps indicate that the extra detail about the cat does not alter the core message about the cat loving to play.

In this context, option D shows correct comma usage, although it does not address a conjunction directly. However, the correct placement of commas in non-restrictive clauses is an important rule in the English language that enhances sentence clarity and flow.

The other options do not show correct comma usage before conjunctions. For example, option A lacks a comma before the conjunction "and," which is necessary when listing three or more items. Option B correctly applies commas in a list format, but no conjunction is present that would necessitate a comma before it. In option C, the comma splice is incorrectly used with the conjunction "it" instead of before a coordinating conjunction.