That would be D, Winston Churchill
technological developments played an important part in twentieth century wars because it gave some sides an edge.
For example:
during WW2 an a machine was created to crack codes that Natzis were sending to each other,this led the sides fighting Hitler an advantage since they would be knowing what would be sent to other Natzis. This led to them being able to know what their next move would be.
Scientists will then form a hypothesis.
Answer: Table 4, this is because if you look at the table, the distance doesn't change over time, meaning the object is in fact at rest.
If you were to put it on a graph, the y would stay the same, making a straight line across the graph, meaning that the distance in meters never changes, meaning the object hasn't moved, so it is at rest.