The core concept is understanding how 'given that' functions as a conjunction to introduce a reason or condition. 'Given that' introduces a clause that provides the reason for the main clause. - **Correct Answer:** C. 'Given that it was raining, they decided to stay home' correctly shows that the rain is the reason they stayed home. - **Incorrect Options:** - A. 'Given the long lines' sounds more causal or descriptive, rather than providing a reason. - B. 'given he had an injury' does not accurately convey the correct meaning, should be 'despite having an injury'. - D. 'given she was very tired' should be 'although she was tired'. **Core Concept:** Conjunction usage 'given that' **Solution Analysis:** The question checks correct application of 'given that' to introduce a cause or reason. **Detailed Analysis:** - Option A: Incorrect, using 'given' as simply a preposition or introducing a condition rather than as a conjunction introducing a cause. - Option B: Incorrect, using 'given' without properly forming a reason clause. - Option C: Correct, as 'given that it was raining' shows that rain caused the decision to stay home. - Option D: Incorrect, as 'given' is used incorrectly, should be 'although she was tired'. **Common Mistake:** Misinterpreting how 'given that' functions and using it inappropriately or not fully understanding conjunctions.