Directions: A related pair of words or phrases is followed by five pairs of words or phrases. Select the pair that best expresses a relationship similar to that in capital letters.

DAMP : VIBRATION

To damp means to reduce or stop vibrations, like a damper stops a vibrating string. Similarly, to stanch means to stop or reduce the flow of liquid (especially blood). The relationship is 'verb : noun it stops/reduces'. Drench creates moisture rather than stopping it. Concentrate might be related to extraction but the direction is wrong. Boiling creates liquid state change, not stopping. Seal and perforation are opposites.