A Rifle Is Aimed Horizontally Toward the Center of a Target

Multiple Choice

A rifle is aimed horizontally toward the center of a target 110 m away.If the bullet strikes 10 cm below the center,what was the velocity of the bullet? (Ignore air friction. )
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A) 21 m/s
B) 1,089 m/s
C) 30 m/s
D) 770 m/s
E) 385 m/s