The internal audit charter provides a formal definition of the internal audit activity's purpose, authority, and responsibility. It is foundational for helping new auditors understand their role and how internal audit functions within the organization.

Management's decision to set a specific price below which liquid fuel shall not be sold, but instead stored, represents Risk avoidance. This approach involves eliminating the risk entirely by avoiding the activity that generates the risk. In this scenario, by deciding not to sell fuel below a certain price, management avoids the risk of losses due to price fluctuations.
References:
* ISO 31000: Risk Management Guidelines.
* COSO ERM Framework.

In the context of an initial public offering (IPO), the best description of the risk involved is "inherent risk." Inherent risk refers to the exposure inherent in the company's operations or industry without considering the effectiveness of any risk management measures. An IPO's inherent risks include market volatility, investor sentiment, regulatory changes, and economic factors that could affect the offering's success.References:
Financial risk management literature and common usage in financial audits.