Euchner included the eyewitness of Metal is Jackson. He chooses her because she was a close friend of Martin.

Answer and Explanation:

The sentence shown in the question above represents an anecdote that shows how Euchner chose the witnesses for the trial. Accordingly, we can see that the criteria for this choice were not the best and do not present efficient reasons for it to be promoted. Accordingly, we can infer that Euchner did not have many options to choose from and that few people in the crowd were willing to testify.

im gonna take a guess and say gas vans and chambers

i think it could possibly be b