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Algebra Difficulty 1.0 Junior Find the answer United Kingdom

Lucy is trying to save water. She has reduced the time she spends in her shower by one quarter. Also, she has lowered the water pressure to reduce the rate the water comes out of the shower head by a quarter. By what fraction has Lucy reduced the total amount of water she uses when she showers?

(A) $\dfrac{3}{8}$ (B) $\dfrac{1}{16}$ (C) $\dfrac{5}{12}$ (D) $\dfrac{7}{16}$ (E) $\dfrac{9}{16}$

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