Assertion `:` In human, maximum digestion occurs in duodenum.
Reson `:` Ampulla of vater opens in duodenum.

Options

A. If both Assertion & Reason are True & the Reasonn is a correct explanation of the Assertion .
B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion
C. If Assertion is True but the Reason is False.
D. If both Assertion & Reason are false.

Answer

### Step-by-Step Solution:

1. **Understanding the Assertion**:
The assertion states that in humans, maximum digestion occurs in the duodenum. The duodenum is the first part of the small intestine, and it plays a crucial role in the digestive process.

2. **Analyzing the Reasoning**:
The reasoning states that the Ampulla of Vater opens in the duodenum. The Ampulla of Vater, also known as the hepatopancreatic ampulla, is where the bile duct and pancreatic duct meet and release their contents into the duodenum.

3. **Evaluating the Truth of the Assertion**:
The assertion is true. The duodenum is indeed where the majority of digestion occurs due to the presence of digestive enzymes from the pancreas and bile from the liver.

4. **Evaluating the Truth of the Reasoning**:
The reasoning is also true. The Ampulla of Vater does open into the duodenum, allowing bile and pancreatic juices to enter, which are essential for digestion.

5. **Determining the Relationship**:
Although both statements are true, the reasoning does not correctly explain the assertion. The fact that the Ampulla of Vater opens into the duodenum does not directly justify why maximum digestion occurs there.

6. **Conclusion**:
Since both the assertion and reasoning are true, but the reasoning does not provide a correct explanation for the assertion, the correct answer is that both statements are true, but the reasoning is not a correct explanation for the assertion.

### Final Answer:
Both assertion and reasoning are true, but the reasoning is not a correct explanation for the assertion.

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