<span>C.
He led a fleet of 13 ships on a voyage to India; on the way, he claimed part of South America for Portugal.</span>
Answer:
They lost limbs or fingers working on high powered machinery with little training. They worked in mines with bad ventilation and developed lung diseases. Sometimes they worked around dangerous chemicals where they became sick from the fumes.
Explanation:
hope this helps!
you arecorrect, urbanization is the answer