Between 1950 and 2010, more than children died before age 5.

The answer to this question is 5 million. Yes, between the year of 1950 and the year of 2010, more than 5 million of children died before they reach the age of 5 and it is more or less 10 million children were born in between these years. The lack of clean water, not complete immunization and lack of nutrients are the reasons of this death to children less than 5 years old.

Ithink it would be choices a and b. hope this !