Josiah is n years old. Maria is twice as old as Josiah. Gia is 3 years older than Maria. The combined ages of the three children are 38 years. How old is each child?
a) Josiah: 9 years, Maria: 18 years, Gia: 21 years
b) Josiah: 11 years, Maria: 22 years, Gia: 25 years
c) Josiah: 12 years, Maria: 24 years, Gia: 27 years
d) Josiah: 13 years, Maria: 26 years, Gia: 29 years
