what is this question answer How many total matches will be played in a knock-out fixture of 19 teams?

Class 12th physical education, Question Paper 2023:How many total matches will be played in a knock-out fixture of 19 teams?

These are the options for the question :How many total matches will be played in a knock-out fixture of 19 teams?

(a) 18
(c) 20
(b) 17
(d) 16

The correct answer is – (a) 18