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Evaluate the following integral:

$$\int _{ -\infty }^{ 0 }{ \cfrac { 3 }{ { x }^{ 2 }+25 } } dx$$

A

$-\cfrac{ 3\pi }{20}$

B

$\cfrac{ 3\pi }{20}$

C

$\cfrac{ 3\pi }{10}$

D

$\cfrac{ 9\pi }{20}$

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