Accountants are practitioners of accountancy, which is the measurement, disclosure or provision of assurance about financial information that helps managers, investors, tax authorities, and others make decisions about allocating resources. Generally, one must have completed a bachelor’s degree in accountancy and passed a government recognized certification examination to become a professional in this field. 

A Nurse is a health care professional engaged in the practice of nursing. Along with other health care professionals. A Nurse is responsible for the treatment, safety, and recovery of acutely or chronically ill/injured people; health maintenance of the healthy; and treatment of life-threatening emergencies in various health care settings. He/She can also be involved in research and may perform non-clinical functions necessary to the delivery of health care. 

Customer service representatives interact with customers on behalf of an organization. They provide information about products and services, take orders, respond to customer complaints, and process returns. Many customer service representatives work in customer contact centers. Others work in insurance agencies, banks, stores, or other places that have contact with customers.