10.
The answer is: C
Explanation
The correct option is C: Electricity.
Electricity is not a property that can be attached and sold in the execution of a decree, as it is not a tangible or movable asset that can be transferred or delivered to the creditor. According to Section 60 of the Code of Civil Procedure, 1908, all movable and immovable properties belonging to the judgment debtor are liable to attachment and sale, except those that are expressly exempted by the law. Electricity does not fall under any of the categories of exempted properties, such as personal ornaments, tools of artisans, books of account, right to sue, etc. Therefore, electricity cannot be attached and sold in the execution of a decree.