According to the total number of matches to be played in various types of tournaments, arrange the following statements in ascending order:
A. a teams are participating in a round robin tournament.
B. 11 teams are participating in a knock out tournament.
C.11 teams are participating in a league tournament
D.13 teams are participating in a elimination tournament
E. 7 teams are participating in a league cum knock out tournament
Choose the correct answer from the options given below: