During the age of discovery what was a common reason rulers sent explorers to unknown lands?

How does the allusion to icarus support the author’s tone ? a)it makes it clear that earhart,like icarus ,fell to her death .b)it emphasizes earhart’s failure in spite of her ambition.c)it stresses that the author views earhart’s fate as a mystery.d)it shows that the author sees earhart as a kind of legend can someone