Option A is the right answer.
collusion(n): secret agreement, especially for fraudulent purposes | Source: https://www.dictionary.com/browse/collusion?s=t
Here, the right answer is derived by looking at the word “criminal”. A criminal has malafide or fraudulent intent.
Option B is incorrect. coalition(n): a combination or alliance, especially a temporary one between persons, factions, states, etc.
Option C is incorrect. collision(n): violent crash
Option D is incorrect. cohesion(n): act of sticking together.