Select the option that represents the letters that, when sequentially placed from left toright in the blanks below, will complete the letter series.

_ _ L M _ G _ L _ D _ P L _​​

Given: _ _ L M _ G _ L _ D _ P L _

Now, we check each options.

Option (a): PMGDPDM (Not Follow)

PM L M G / G D L P D / D P L M

Option (b): GPDPMGM ​

GP L M D / G P L M D / G P L M

Option (c): MGGDPPM (Not Follow)​

MG L M G / G D L P D / P P L M

Option (d): DPNPDMG (Not Follow)​

DP L M N / G P L D D / M P L G

So, the following pattern is: G P L M D

Thus, correct option is (b).