Among the following, the correct statement is: At low pressure, real gases show ideal behavior. At very low temperature, real gases show ideal behavior. At very large volume, real gases show ideal behavior. At Boyle's temperature, real gases show ideal behavior.

At very large volume, real gases show ideal behavior. The van der Waal's equation for one mole of real gas is [P + a/V²](V - b) = RT. When volume is very large, the terms a/V² and b can be neglected. Hence, the equation becomes PV = RT. This is the ideal gas equation for one mole of gas. Hence, option B is correct.