List-I | List-II | ||
| (A) | Product | (I) | Method to spread the word about the product or service |
| (B) | Price | (II) | Item actually being sold |
| (C) | Place | (III) | Value put on a product |
| (D) | Promotion | (IV) | Path along which goods move from producers to consumers |
What comes next in the series?
\(2, 6, 12, 20, 30, \ ?\)