Which revision of these two sentences uses a relative clause?

The orchestra was seated on stage. They played a difficult score.

they played a difficult score.

Explanation:

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the colonists were also expected to pay a tax to meet the costs of establishing and manning the borders of the proclamation line which led to the belief that the king had sided with the indians despite pontiac's rebellion, against the interests of the settlers. this contributed to the causes of the american revolution.