7. In the league system, the ranking in each group is determined as follows:
a) greatest number of points obtained in all group matches;
If two or more teams are equal on the basis of the above criterion,
their ranking shall be determined as follows:
b) greatest number of points obtained in the group matches between
the teams concerned;
c) goal difference resulting from the group matches between the teams concerned;
d) greatest number of goals scored in the group matches between the teams concerned;
e) goal difference in all group matches;
f) greatest number of goals scored in all group matches;
g) a play-off on neutral ground.