Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.
ccd_cc_d_ppccccddd_ _p
1
ppdcp
2
pcdpp
3
pcdpc
4
pccdp
Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.
ccd_cc_d_ppccccddd_ _p