Answer - 1 Availability of workers in the city
Explanation for my answer - workers are lessening day by day as they are replaced with machines
Explanation for not being the answer-
2- natural resources such as gold, diamond , and much more is being sold at high rates in this era
3 - The ability to turn company assets into funds that plays an important role in mandating transaction is defined as the availability of capital. Explanation: It is applicable in Real estates. Real Estate must compete with other assets for 'debt and equity capital.
4 - man made goods such as theme parks.. and other famous visiting places have Benn Mande by man and attracted ppl to come and enjoy their time..