Answer :

To determine the issue that results from the combination of limited resources and unlimited wants, let's analyze each provided option to find the correct answer.

1. Production:
- Production refers to the process of creating goods and services. While important, it does not directly address the problem resulting from the combination of limited resources and unlimited wants.

2. Profit:
- Profit is the financial gain one receives when the revenue from selling goods or services exceeds the costs of production. Though profit is a significant aspect of economics, it does not pertain to the fundamental issue arising from finite resources and infinite desires.

3. Scarcity:
- Scarcity is an economic term that describes the situation where limited resources are insufficient to satisfy all human wants and needs. Since resources such as time, money, and raw materials are finite, and human desires are limitless, scarcity emerges, which necessitates making choices about how to allocate resources efficiently.

4. Allocation:
- Allocation is the process of distributing resources among various uses. While it's important in managing resources, it doesn't directly describe the root issue caused by limited resources and unlimited wants.

Given these explanations, the correct choice that addresses the issue arising from the combination of limited resources and unlimited wants is scarcity. This fundamental economic problem requires societies to make decisions on how to distribute resources efficiently to meet various demands.

Therefore, the issue that results from the combination of limited resources and unlimited wants is scarcity.