Assertion : Coprophagy is the characteristic of mammal.
Reason : Coprophagy is found in all mammals.

Options

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C. If the assertion is true but the reason is false
D. If both the assertion and reason are false

Explanation

To solve the assertion and reason question, we need to analyze both statements.

### Step 1: Analyze the Assertion
- The assertion states: "Coprophagy is the characteristic of mammal."
- Coprophagy refers to the consumption of feces, which is indeed observed in some mammals, particularly herbivores like rabbits and some rodents. This behavior helps them to digest their food more efficiently by re-ingesting nutrients.

### Step 2: Analyze the Reason
- The reason states: "Coprophagy is found in all mammals."
- This statement is incorrect. While some mammals exhibit coprophagy, it is not a behavior that is found in all mammals. Many mammals do not engage in this behavior at all.

### Step 3: Conclusion
- The assertion is true (coprophagy is a characteristic of some mammals), but the reason is false (it is not found in all mammals).
- Therefore, the correct conclusion is that the assertion is true, but the reason is false.

### Final Answer
- The assertion is true, and the reason is false.

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