Statement I : In the case of anti-ferromagnetic substances, magnetic moment is zero.
Statement II : Domains get oriented in the direction of applied magnetic field.

Options

A. Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I
B. Both Statement I and Statement II are correct but Statement II is not the correct explanation of Statement I
C. Statement I is correct but Statement II is incorrect
D. Statement II is correct but Statement I is incorrect

Explanation

To analyze the given statements regarding anti-ferromagnetic substances, we can break down the problem step by step.

### Step 1: Understanding Anti-ferromagnetism
Anti-ferromagnetic substances are materials where the magnetic moments of atoms or ions align in opposite directions. This means that for every magnetic moment pointing in one direction, there is an equal magnetic moment pointing in the opposite direction.

**Hint:** Recall the definition of anti-ferromagnetism and how it affects the magnetic moments of the material.

### Step 2: Evaluating Statement I
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