Stock of unsold finished goods, semi finished goods or raw materials which firm carries from one year to next is called :

Inventory

The correct answer is option (4) : Inventory

In economics, the stock of unsold finished goods, or semi-finished goods, or raw materials which a firm carries from one year to the next is called inventory. Inventory is a stock variable. It may have a value at the beginning of the year; it may have a higher value at the end of the year. In such a case inventories have increased (or accumulated). If the value of inventories is less at the end of the year compared to the beginning of the year, inventories have decreased (decumulated). We can therefore infer that the change of inventories of a firm during a year ≡ production of the firm during the year – sale of the firm during the year.