Directions : In each of the following questions, a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements, mark the correct answer as
Assertion : Chalkbox, a match box and dice, are all examples of cube.
Reason : A solid bounded by six rectangular plane faces is called a cuboid.

Options

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

Answer

To solve the question, we need to analyze the Assertion and the Reason provided.

### Step 1: Understand the Assertion
The assertion states that "Chalkbox, a match box, and dice, are all examples of a cube."

- A cube is a three-dimensional shape where all sides are equal and it has six square faces.
- A chalkbox and a matchbox are typically rectangular in shape, which means they are cuboids, not cubes.
- Dice, however, are indeed cubes as they have six equal square faces.

**Conclusion for Assertion**: The assertion is incorrect because while dice are cubes, chalkboxes and matchboxes are cuboids.

### Step 2: Understand the Reason
The reason states that "A solid bounded by six rectangular plane faces is called a cuboid."

- A cuboid is defined as a three-dimensional shape that has six faces, all of which are rectangles (though they can also be squares, which are a special case of rectangles).
- This definition is accurate.

**Conclusion for Reason**: The reason is correct because it accurately describes what a cuboid is.

### Final Conclusion
- The Assertion is **false** because not all the items listed are cubes (only the dice is).
- The Reason is **true** as it correctly defines a cuboid.

### Answer
The correct answer is that the Assertion is false and the Reason is true.

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