The detail that best supports the answer to part A concerning the reason for the assassination of the man and his wife is that :
This agrees with part A that says that the murder of both persons was just a senseless act of Violence
The story shows that both top personalities while on their way to a function were thrown a bomb.
After they were able to escape the bomb attack, they arrived at their destination only to be shot dead by another person.
The arrest of the persons that carried these acts shows that they did it on their own accord and for their own reasons.
Read more on the assassination here:https://brainly.com/question/9638