Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?

m _ nm _ n _ an _ a _ ma _

A. aamnan
B. ammanm
C. aammnn
D. amammn

Also Read:

• a_bbc_aab_cca_bbcc
• _ bc _ ca _ aba _ c _ ca
• _ ab _ b _ aba _ _ abab.
• bca _ b _ aabc _ a _ caa
• b _ac _ cc _ cb _ ab _ ac
• aab _ aa _ bbb _ aaa _ bbba
• _ bcc _ ac _ aabb _ ab _ cc.
• b _ ccacca _ ba _ bbc _ bc _ a.
• _ stt _ tt _ tts _
• gfe _ ig _ eii _ fei _ gf_ ii