Clark expertly navigated their expedition
An adverb clause is a dependent clause which cannot exist on its own, it has to be a part of the main, independent clause. So, having that in mind, the only dependent clause among these examples is 'when you return from California'. Therefore, the correct answer is B.
<span>The change in an object's position is the definition for displacement</span>
If this question is from Penn Foster, then your answer should be "<span>from their own point of view"
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