$\"\"$

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The total cost of $\"\"$ DVDs is $\"\"$ .

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Verify the potions.

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Option A: $\"\"$ (substitute $\"\"$ )

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Option B: $\"\"$ (substitute $\"\"$ )

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Option C: $\"\"$ (substitute $\"\"$ )

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Option D: $\"\"$ (substitute $\"\"$ )

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The cost of $\"\"$ DVD is $\"\"$ ; $\"\"$ .

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Therefore, the cost of $\"\"$ DVD is $\"\"$ .

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$\"\"$

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Option C is right choice.