Europeans were originally motivated to explore the seas to discover previously unknown lands, especially after the contact with America, where europeans found all kind of valuable goods. The portuguese were the first to pursue maritime exploration, soon to be followed by the spaniards.
C the annexation of Austria
The answer is A, In 1933 Hitler became chancellor, then in 1936 the spanish civil war begin and then in 1938 the Munich pact was signed<span />