<span>Henry fords production methods affected the number of cars produced by increasing it.</span>
The reason why no–one really knows why he was killed is that there is no agreement about who was behind the murder, who pulled the trigger or triggers, or even how many triggers were pulled. And the reason why there is no agreement about many of the basic facts of the JFK assassination is that the case was never seriously investigated.
B- Vittorio Wilson is the correct answer even tho you didnt list the answers i had the exact same question. =P