Select the option that will fill in the blank and complete the given series.
ABCD, _____, XYZA, XXXX, UVWX, UUUU
1
AAAA
2
DCBA
3
DDDD
4
BCBA
Select the option that will fill in the blank and complete the given series.
ABCD, _____, XYZA, XXXX, UVWX, UUUU