| List-I | List-II | ||
| (A) | Private placement | (I) | Used to reduce labour turn over |
| (B) | Rights issue | (II) | Requires to issue a prospectus |
| (C) | Offer to employee | (III) | Depends on institutional investors |
| (D) | Public issue | (IV) | Deals with existing shareholders only |
What comes next in the series?
\(2, 6, 12, 20, 30, \ ?\)