The blank requires a noun that indicates the work that led to the execution (the carrying out of a sentence of death on a condemned person) of the subject. Among the options, 'criminal' is the name of a type of person (a person who has committed a crime) and not the name of the action, 'benevolence' (the quality of being well meaning; kindness), 'dishonesty' (deceitfulness shown in someone's character or behaviour) are names of actions, but they do not lead to the execution of a person and so they are negated. Option (e) is contradictory with respect to the context. Option (b) 'crimes' (illegal activities) is the most appropriate word that can fill the blank and matches the context of the sentence as required.
Hence, the correct answer is option (b).