The dependent clause in a sentence is that which cannot make meaning when it stands alone. In the sentence, the dependent clause is;
An independent clause is that which makes complete meaning on its own. We can segment this sentence into two as follows:
1. My parents say I have to finish all my homework
2. Before I am allowed to see my friends
The first part is the independent clause because it makes complete meaning. The second part is dependent on the first to have a complete meaning.
Therefore, sentence C is the dependent clause.
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