Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series.
_ M o N _ _ _ o M _ _ o _ _o M _ N o J o
1
o o J o o N J o M
2
o o J o o N J o o
3
o M J o o N J o o
4
M o J o o N J o o