Select the most appropriate option to fill in blank number 1.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. is called
The coded box placed on the first page of every chapter (1) is called quick response code.
= The sentence is the definition of a quick response code. So, 'is called' or 'is known as' can be used here.
Hence, is called is the correct answer.