Victor and Vivian have a very diverse family. Which of the following children would not be a qualifying child for the purpose of claiming the child tax credit in 2015?

a. Vivians granddaughter, who turned 4 in 2015 and lives with Victor and Vivian for more than half of the year.

b. Victors brother, who turned 16 in 2015 and lives with Victor and Vivian for more than half of the year.

c. Victor and Vivians daughter, who turned 17 in 2015 and does not provide more than half of her support.

d. Victor and Vivians son, who born on October 21, 2015.