[those] who may have escaped from any persons to whom such service or labor is claimed to be due which of the following is true of this excerpt?

a. the phrase claimed to be due implies a lack of credibility.
b. the word escaped suggests the mode of departure was immoral.
c. the phrase such service or labor suggests the labor is unjust.
d. the inclusion of the phrase to be due implies the escapees must return.

i think the answer is d but i am not sure..