A family consists of a mother, a father, and three children. The mother is a nurse, the father is an engineer, and the children are aged 10, 12, and 14. If the 14-year-old is the eldest child and is named Alex, what is the age of the youngest child?
Answer: A. 10
The youngest child is 10 years old, as the ages are 10, 12, and 14.