Intermediate Sudoku technique #1

Following the technique taught in the previous post, sometimes we might encounter more than one digit as the possible answers for a particular cell.

Find out the cells which are having the same possible answers/digits
In this situation, we should try to find out the cells which are having the same possible answers/digits, and try to detect if they could provide certain hints for elimination or exclusion, in order for us to resolve Sudoku puzzle.

For example:

Cell A1 and A3 have possible answers of 4 or 5. We could actually conclude that the answers for these two cells will be either 4 or 5, meaning no other possible answers for both the cells.

And so, we could conclude that the answer for Cell B1 is 2, answer for Cell B3 is 7, and answer for Cell C2 is 9. The answer for Cell B2 is 3 which is the missing digit.