In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

1. The actor had earlier said he would be the(a)/ first person to raise voice even a(b)/ single Muslim was affected by the CAA.(c)/ No Error(d)/

I am willing to play(a)/ any role in order maintain(b)/ peace in the country.(c)/ No Error(d)/

At least 23 petitions has been(a)/ filed in the  Supreme Court(b)/ challenging the central government’s decision.(c)/ No Error(d)/

Several cities otherwise known to (a)/ record high pollution levels have (b)/ recorded an improvement in air quality(c)/ No Error(d)/

Such was the condition at(a)/ some places that even electricity(b)/ meters was not intact.(c)/ No Error(d)/

In India, Ancient Iron Age is attached with

Ashoka sent missionaries to

Which among the following is the oldest dynasty?

Who was the founder of the Kanva dynasty?

Who was the founder of Vikramshila Vihar?