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'.
The officer asked the recruit (A)/which district(B)/he came from.(C)/No error(D)
In the following question, sentence given with blank is to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.
The enzyme was the _____________ that triggered the chemical reaction.