While some historians believe that the Peace Pact of 1928 put an end to wars of conquest by declaring war itself as illegal, others believe that it
directly contributed to the Second World War by making the Axis powers fear that if they did not gamble on rapid conquest, they would forever drop to the second tier, below the colonial powers.
A. directly contributed to the Second World War by making the Axis powers fear that if they did not gamble on rapid conquest, they would forever drop
B. had directly contributed to the Second World War by making the Axis powers fear that if they had not gambled on rapid conquest, they would forever be dropped
C. directly contributed to the Second World War by making the Axis powers fear that if they had not gambled on rapid conquest, they would forever drop
D.directly contributed to the Second World War by making the Axis powers fear that if they had not gambled on rapid conquest, they would forever be dropped
E. had directly contributed to the Second World War by making the Axis powers fear that if they did not gamble on rapid conquest, they would forever drop