The Black Death was a disease. And was spread when packages were sent from Japan to the USA. And from there spread to airports and travel rings.
If Robert McNamara is one of the options, then he is the correct answer - he was important in the Vietnam War, but not during the WWII.
Answer:
The non violent protests weren't working for them.
Explanation:
I mean it makes sense right? If something your doing isn't working you'd change it up.
