KBC 2023| Which of these is the biggest size of paper?

KBC 2023, Check the answer to the question- Which of these is the biggest size of paper?

KBC 2023, Amitabh Bachchan.
KBC 2023, Amitabh Bachchan. (Representative Image)

KBC 2023, The options of the question – Which of these is the biggest size of paper?

A. A1

B. A2

C. A3

D. A4

The answer is A. A1.