During the Seventeenth Century, Indentured Servitude at First Seemed the Best

During the seventeenth century, indentured servitude at first seemed the best solution to the labor shortage for all of the following reasons except that

A) the Indian population proved to be an unreliable work force because they died in such large numbers.
B) African slaves cost too much money.
C) many poor Englishmen were willing to mortgage their labor in exchange for passage to America.
D) it was impossible to obtain slaves.
E) settler families procreated too slowly.