Select the set of letters that when sequentially placed in the blanks of the given letter series will complete the series. p_hk_ph_kp_hk_ph_k |
hkpkhp phkkhp khpkhp kphkhp |
khpkhp |
The required pattern is: pkh / khp / hpk / pkh / khp / hpk So, the code is: khpkhp |