Select the sentence that is punctuated correctly.

The oil from Eucalyptus trees which are native, to Australia is known for its medicinal properties.
The oil from Eucalyptus trees, which are native to Australia, is known for its medicinal properties.
The oil from Eucalyptus trees which are native to Australia is known, for its medicinal properties.

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Try reading them, making a brief pause where the commas are. One will sound more natural.

The oil from Eucalyptus trees which are native, to Australia is known for its medicinal properties

To select the sentence that is punctuated correctly, we need to analyze the placement of commas. In this case, we are looking for a sentence that uses commas correctly to indicate non-essential information.

Let's break down each option:

1. The oil from Eucalyptus trees which are native, to Australia is known for its medicinal properties.
- In this sentence, a comma is used incorrectly after "native," which disrupts the flow of the sentence. The correct placement of the comma would be after "Australia" to separate the non-essential information ("which are native to Australia").

2. The oil from Eucalyptus trees, which are native to Australia, is known for its medicinal properties.
- This sentence uses commas correctly. The comma after "trees" separates the non-essential information ("which are native to Australia") from the main part of the sentence.

3. The oil from Eucalyptus trees which are native to Australia is known, for its medicinal properties.
- In this sentence, a comma is used incorrectly after "known" which disrupts the flow of the sentence. The correct placement of the comma would be after "Australia" to separate the non-essential information ("which are native to Australia").

Based on the analysis, option 2 is the sentence that is punctuated correctly:

"The oil from Eucalyptus trees, which are native to Australia, is known for its medicinal properties."