Answer:
Racket.
Explanation:
The word which means 'a dishonest scheme' is 'racket.'
The term racket can be defined as an organized activity which is illegally worked out. It is a dishonest scheme, trick or fraud that's been carried out by a group of people or an illegal organization.
For example, a racket or dishonest scheme can be human trafficking, drug dealing, etc.
Thus from the given options the correct one is 'racket.'
