The ice age melted a straight which turned it into a sea which helped them migrate.
To find a quicker way to Asia and India
This is an example of irony.
It's not parody since the action isn't being dramaticized or made ridiculous, nor is it foreshadowing since there's it's not really suggesting that this later incident will happen. It's also not a metaphor since it's not different things being compared or likened to one another.
A. Discourage the spread of the National Bank
