The correct option is
C Group 2 is the winner by 9 points.
The score of Group 1 is 3,200 + 345.
The score of Group 2 is 3,200 + 354.
As 3,200 is common for both the groups, we only compare 345 and 354.
Now, let us write these numbers in the place value chart.
Digit at the hundreds place is same.
So, we will compare the digit at the tens place to identify the greater number.
We can clearly see that the Group 2 has scored more points than Group 1.
Hence, Group 2 is the winner.
Let us find the difference between the scores of the two groups.
Since, 3,200 is common for both the groups, we will only find the difference between 354 and 345.
∴ Group 2 is the winner by 9 points.