In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative.
_ bca _ cca _ ca _ b _ c
a _ bccb _ ca _ cca _ baab _ c
a _ ca _ bc _ bcc _ bca
a _ bbc _ aab _ cca _ bbcc
c _ baa _ aca _ cacab _ acac _ bca
_ _ babbba _ a _ _