Which one of the following is not a sub-index of the World Bank's 'Ease of Doing Business Index'?

1. A

   Maintenance of law and order

   (a) Maintenance of law and order is not a sub-index of the World Bank’s Ease of Doing Business ranking. That is why this is the official key: it is the item that does not belong.

2. B

   Paying taxes

   (b) Paying taxes was one of the ten Doing Business indicators. It is a sub-index, so it is not the key.

3. C

   Registering property

   (c) Registering property was a Doing Business indicator. Not the key.

4. D

   Dealing with construction permits.

   (d) Dealing with construction permits was a Doing Business indicator. Not the key.

Summary. Official key is (a). Ease of Doing Business used ten scoring topics such as starting a business, permits, electricity, property, credit, taxes, trade, contracts and insolvency. Law and order is a general governance theme, not a DB sub-index. Honour (a).