Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series. l _ chtlgc _ tlg _ ht _ gc _ tlgch _

ghclht ghchlt hhgclt hghclt

ghclht

l g c h t / l g c h t / l g c h t / l g c h t / l g c h t g h c l h t