Which of the following best describes the role of the purser on a cruise?

The role of the purser on a cruise primarily involves managing the financial aspects of the ship's operations. This includes overseeing all monetary transactions that occur during the voyage, such as processing payments for onboard purchases, managing guest accounts, and handling currency exchange. The purser ensures that financial records are accurately maintained and provides financial reports as necessary.

In contrast, the other roles listed do not align with the purser's responsibilities. A liaison between passengers and entertainment staff typically refers to someone who helps communicate scheduling and activities related to entertainment, which is not within the purser's scope. The primary cook or chef would be responsible for meal preparations, focusing on food service rather than financial management. A safety officer would take charge during emergencies, overseeing safety protocols and procedures, which is not a function of the purser's role. Hence, the definition of the purser as the financial manager responsible for all monetary transactions accurately captures the essence of this position on a cruise.