Assertion: The environmental resistance does not allow population growth to soar towards infinity.
Reason: The environmental resistance checks the biotic potential.

Options

A. If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B. If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
C. If Assertion is true but the Reason is false
D. If both Assertion and Reason are false.

Explanation

To analyze the given question, we need to evaluate both the assertion and the reason provided.

### Step 1: Understand the Assertion
The assertion states: "The environmental resistance does not allow population growth to soar towards infinity."

- **Explanation**: Environmental resistance refers to the various factors in the environment that limit the growth of a population. These factors can include food availability, predation, disease, and competition. As these factors become more pronounced, they prevent populations from growing indefinitely.

### Step 2: Understand the Reason
The reason states: "The environmental resistance checks the biotic potential."

- **Explanation**: Biotic potential is the maximum capacity of an organism to reproduce under optimal environmental conditions. However, environmental resistance acts as a check on this potential by introducing limitations that prevent populations from reaching their maximum reproductive capacity.

### Step 3: Analyze the Relationship
Now we need to analyze the relationship between the assertion and the reason.

- The assertion is correct because environmental resistance indeed prevents populations from growing infinitely.
- The reason is also correct because it explains how environmental resistance limits the biotic potential of a population.

### Step 4: Conclusion
Since both the assertion and the reason are correct, and the reason provides a valid explanation for the assertion, we can conclude that:

- **Final Answer**: Both assertion and reason are true, and the reason is the correct explanation of the assertion.