Over 200 Million Children in Developing Countries Are Estimated to Not

Over 200 million children in developing countries are estimated to not reach full developmental potential and nearly all deaths of children under age 5 occur in developing countries. What is a specific effort by UNICEF to address the disproportionate rates of death of children under the age of 5 in developing countries?

A) UNICEF has been providing materials to build schools and sources of water.
B) UNICEF has brought in volunteers to educate parents and local leaders.
C) UNICEF airdrops food and supplies in communities for distribution.
D) UNICEF has provided vaccines as a measure of protection and improve survival rates.
E) To date, UNICEF has not been able to gain access to developing countries.