Assertion (A): Electromagnetic wave does not require any medium to travel.
Reason (R): Electromagnetic wave cannot travel through any medium.

Options

A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true and R is NOT the correct explanation of A.
C. A is true but R is false
D. A is false and R is true

Explanation

To analyze the given statements, we will evaluate the Assertion (A) and Reason (R) step by step.

### Step 1: Evaluate the Assertion (A)
**Assertion (A)** states: "Electromagnetic waves do not require any medium to travel."

- Electromagnetic waves, such as light, radio waves, and microwaves, can propagate through a vacuum (space without matter). This is a fundamental property of electromagnetic waves.
- Therefore, the assertion is **true**.

### Step 2: Evaluate the Reason (R)
**Reason (R)** states: "Electromagnetic waves cannot travel through any medium."

- This statement is incorrect. Electromagnetic waves can travel through various media such as air, water, and glass. While their speed may change depending on the medium, they can still propagate through it.
- Therefore, the reason is **false**.

### Step 3: Conclusion
- Since Assertion (A) is true and Reason (R) is false, we conclude that the correct relationship between the two statements is that the assertion is true, but the reason is not a valid explanation for the assertion.

### Final Answer
- Assertion (A) is true, and Reason (R) is false.