Which one of the following represents the data values stored in data set COMBINE?

Given the following SAS data sets ONE and TWO:

ONE TWO

OBS COMMON X OBS COMMON Y

1 A 10 1 A 1

2 A 13 2 A 3

3 A 14 3 B 4

4 B 9 4 B 2

5 C 8 5 C 5

6 C 14

The following SAS DATA step is submitted:

data combine;

merge one two;

by common;

run;

Which one of the following represents the data values stored in data set COMBINE?
A . OBS COMMON X Y
1 A 10 1
2 A 13 3
3 A 14 3
4 B 9 4
5 B 9 2
6 C 8 5
7 C 14 5
B . OBS COMMON X Y
1 A 10 1
2 A 13 3
3 B 9 4
4 C 8 5
C . OBS COMMON X Y
1 A 10 1
2 A 13 3
3 B 14 4
4 B 9 2
5 C 8 5
D . OBS COMMON X Y
1 A 10 1
2 A 13 1
3 A 14 1
4 A 10 3
5 A 13 3
6 A 14 3
7 B 9 4
8 B 9 2
9 C 8 5
10 C 14 5