Select the combination of letters, which when sequentially placed in the blanks of the given series, will complete the series.
AB _ C _ CD _ _ DEEE _ EF _ _ FFF
1
BCCDEFF
2
BCCCDEF
3
BCDDEFF
4
BCDDDEF
Select the combination of letters, which when sequentially placed in the blanks of the given series, will complete the series.
AB _ C _ CD _ _ DEEE _ EF _ _ FFF