I would have to say D or A but if I had to chose I would say D
Answer:
Due to characteristics of living persons.
Explanation:
It is said that labor power is a special commodity because it is an characteristics of living persons, who own it themselves in their living bodies. Due to they own it within themselves, they cannot permanently sell it to some other people in that case, they would be a slave, and a slave does not own himself or no rights on his body so that's why labour power is considered as commodity. In Vietnam, labor power is also become a commodity which can be used to produce other products.