Carrying capacity is

Options

A. maximum number of individuals which an environment can sustain
B. minimum number of individuals which an enviorment can sustain
C. both (a) and (b)
D. None of these

Explanation

### Step-by-Step Solution:

1. **Understanding the Concept**:
- Carrying capacity refers to the maximum number of individuals of a particular species that an environment can support sustainably without degrading the ecosystem.

2. **Defining the Environment**:
- An environment can be any ecosystem such as a pond, forest, or garden. Each of these ecosystems has a limit to the number of organisms it can support based on resources like food, water, and space.

3. **Identifying the Key Term**:
- The key term here is "maximum number of individuals." This means that there is a threshold that, when exceeded, can lead to resource depletion and environmental degradation.

4. **Evaluating Options**:
- The question likely provides multiple-choice options. The correct option will state that carrying capacity is the "maximum number of individuals which an environment can sustain."

5. **Conclusion**:
- Therefore, the correct answer to the question "Carrying capacity is" is that it is the maximum number of individuals that an environment can sustain.