Alberta and Louis,ages 66 and 64 Respectively,filed a Joint Return

Alberta and Louis,ages 66 and 64 respectively,filed a joint return for 2011.They provided all of the support for their blind 19-year-old daughter,who had no gross income.They also provided the total support of Louis's father,who is a French citizen and life-long resident of France.How many exemptions may they claim on their 2011 tax return?

A) 4
B) 5
C) 2
D) 3
E) None of the above