Answer:
The correct answers are option A. "Low consumption rate" and E. "Lack of access to vaccines".
Explanation:
According to the United Nations, a developing country is a country that faces low or middle economy conditions that does not allow for a sustainable development. The lack of developed industrial base, makes developing countries to have a low consumption rate because usually the production of goods is not enough for its people. Also, developing countries often lack of access to vaccines because their medical conditions and medical structure has not achieved a proper scheme for all people vaccination.
