Statement-1 If Sets A and B have three and six elements respectively, then the minimum number of elements in `A uu B` is 6.
Statement-2 `AnnB=3`.

Options

A. Statement-1 is true, Statement-2 is true, Statement-2 is a correct explanation for Statement-1
B. Statement-1 is true, Statement-2 is true, Statement-2 is not a correct explanation for Statement-1
C. Statement-1 is true, Statement-2 is false
D. Statement-1 is false, Statement-2 is true

Explanation

To solve the problem, we need to analyze the two statements given:

**Statement 1:** If Sets A and B have three and six elements respectively, then the minimum number of elements in \( A \cup B \) is 6.

**Statement 2:** \( A \cap B = 3 \).

### Step-by-step Solution:

1. **Understanding the Sets:**
- Let the number of elements in Set A be \( |A| = 3 \).
- Let the number of elements in Set B be \( |B| = 6 \).

2. **Using the Formula for Union of Sets:**
- The formula for the number of elements in the union of two sets is given by:
\[ |A \cup B| = |A| + |B| - |A \cap B| \]

3. **Identifying the Maximum Intersection:**
- The maximum number of elements that can be in the intersection \( |A \cap B| \) cannot exceed the number of elements in the smaller set, which is Set A. Therefore, the maximum value of \( |A \cap B| \) is:
\[ |A \cap B| \leq |A| = 3 \]

4. **Calculating the Minimum Union:**
- To find the minimum number of elements in \( A \cup B \), we assume the maximum intersection:
\[ |A \cup B| = |A| + |B| - |A \cap B| = 3 + 6 - 3 = 6 \]
- Thus, the minimum number of elements in \( A \cup B \) is indeed 6.

5. **Evaluating Statement 2:**
- Statement 2 claims that \( |A \cap B| = 3 \). This means that all elements of Set A are also in Set B.
- If \( |A \cap B| = 3 \), then the calculation for \( |A \cup B| \) confirms that:
\[ |A \cup B| = 3 + 6 - 3 = 6 \]
- Therefore, Statement 2 is true and it supports Statement 1.

### Conclusion:
- Both statements are true, and Statement 2 correctly explains Statement 1.

### Final Answer:
- The correct option is: **Option A** - Statement 1 is true, Statement 2 is true, and Statement 2 is the correct explanation for Statement 1.