The correct answer is - B. <span>While Padmi looks frantically for her pen, her sister calmly writes with it. Clause 1, <em>Padmi looks frantically for her pen, </em>is dependent here because it is a subordinate clause which cannot exist on its own in this context. Clause 2 is independent here, meaning that it doesn't depend on Clause 1. A and D are incorrect because both Clauses are independent here, C is incorrect because Clause 1 is independent, and Clause 2 is dependent, which is not what you need here.</span>
