Question : In the sentence identify the segment which contains the grammatical error.
'Plogging' is an international trend, in which someone picking up trash while jogging or brisk walking.
Option 1: in which someone
Option 2: picking up trash
Option 3: 'Plogging' is an international trend
Option 4: while jogging or brisk walking
Correct Answer: picking up trash
Solution : The error lies in the second option.
The error lies in the verb tense inconsistency, as the verb is in the present participle form, while the verb "is" in the main clause suggests a need for a simple present tense verb. Thus, the present participle "picking" should be changed to the simple present form "picks" to make the sentence grammatically accurate.
Therefore, the correct sentence is: "'Plogging' is an international trend, in which someone picks up trash while jogging or brisk walking."