Read this sentence.
after months of cold weather, most of the community spent the warm weekend outside.
which answer adds a participial phrase to the sentence?
after months of cold weather, most of the community, happy about the sun, spent the warm weekend outside.
after months of cold weather, most of the community spent the warm weekend outside and swam in the river.
after months of cold weather, most of the community spent the warm weekend outside in their yards.
after months of cold weather, most of the community, aching for sunshine, spent the warm weekend outside.

After months of cold weather, most of the community, aching for sunshine, spent the warm weekend outside.

Explanation:

Identifying a participle phrase is very easy, just remember that these phrases always work as adjectives, or always put a characteristic on someone or something. Also, these sentences will always end with "ing" or "end". Thus, we can conclude that, among the options given in the above question, the one that represents the addition of a particular phrase is: "After months of cold weather, most of the community, aching for sunshine, spent the warm weekend outside."