Correct option is E
In the sentence, the word "abetting" fits well, as it means to assist or support someone, especially in a wrongdoing or illegal activity. The sentence then becomes: "Three tax inspectors were accused of aiding and
abetting the men charged with fraud."
Imbedding: fix (an object) firmly and deeply in a surrounding mass.
Assuring: tell someone something positively to dispel any doubts.
Maintaining: cause or enable (a condition or situation) to continue.
Surviving: remaining alive, especially after the death of another or others.
Abetting: encourage or assist someone to commit (a crime)