Answer :
Final answer:
Option B,C.
Both options B) 'The First World War, which broke out in 1914, engulfed most of Europe and parts of the Near East.' and C) 'The First World War, which broke out in 1914 and which engulfed most of Europe and parts of the Near East.' are complete sentences.
Explanation:
The subject of your question is English, specifically the identification of a complete sentence.
In a complete sentence, there needs to be at least a subject and a verb, and the sentence should express a full thought.
Let's look at the options you mentioned:
Option A is not a complete sentence because it doesn't contain a verb or express a full thought.
Both options B and C, however, are complete sentences.
They have both subjects ('The First World War') and verbs ('broke out', 'engulfed'), and they express full thoughts.
In conclusion, the correct answer, or the final answer in 20 words, is that B and C are both complete sentences.
Learn more about complete sentences here:
https://brainly.com/question/37728544
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