Read the information carefully and answer the questions follow that.
A cricket tournament had three teams India, Australia and Sri Lanka taking part in it. The format of the tournament was such that in the preliminary stage each of these teams, would play the other teams four times. Four points are awarded for a win and in case a team beats another team by a huge margin, it is given a bonus point in addition to the four points. At the end of the preliminary stage, the top two teams, in terms of the points scored, reaches the finals. No match in the tournament ends in a tie and if two teams end up with the same number of points at the end of the preliminary stage, the team with the better net run rate is placed higher.
If Australia had the highest number of points at the end of the preliminary stage, then atleast how many points did it have?
- $16$
- $17$
- $18$
- $20$
