Multiple choice

Directions: The sentence has a part underlined. The part may have error of grammar and/or syntax. Identify the error and select the option that rectifies the error.

A seismograph records oscillation of the ground caused by seismic waves, vibrations that travel from its point of origin, through the Earth or along its surface.

  1. oscillation of the ground caused by seismic waves, vibrations that travel from its point

  2. oscillations of the ground caused by seismic waves, vibrations that travel from its point

  3. oscillation of the ground caused by seismic waves, vibrations that travel from their points

  4. oscillations of the ground caused by seismic waves, vibrations which travel from its point

  5. oscillation of the ground caused by seismic waves, vibrations which travels from its points
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

 Vibrations being plural should not be followed by the singular pronoun 'its'. Hence, 'its' should be replaced by 'their' which is rectified only in (C). 

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