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We can solve this question using matching operations (see the video lesson below )
Given:
Quantity A: \( \frac{1}{c}\)
Quantity B: \(\frac{1}{d}\)

Since we're told \(c\) is positive, we can safely multiply both quantities by \(c\) to get:
Quantity A: \(1 \)
Quantity B: \(\frac{c}{d}\)

Similarly, since \(d\) is positive, we can safely multiply both quantities by \(d\) to get:
Quantity A: \(d\)
Quantity B: \(c\)

Since it's given that \(2 < c < d < 3\), we know that Quantity A must be greater

Answer: A

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