Which of the following statements is correct for diamagnetic materials?

$A$ paramagnetic material has $10^{28} \text{ atoms/m}^3$. Its magnetic susceptibility at temperature $350 \text{ K}$ is $2.8 \times 10^{-4}$. Its susceptibility at $300 \text{ K}$ is

The curve representing the relationship between the magnetic moment $(M)$ and the temperature $(T)$ of a ferromagnetic material is:

The materials suitable for making electromagnets should have

Given below are two statements:
Statement $I$: The diamagnetic property depends on temperature.
Statement $II$: The induced magnetic dipole moment in a diamagnetic sample is always opposite to the magnetizing field.
In the light of the given statements,choose the correct answer from the options given below:

What is a diamagnetic substance?