Final answer:
CRM is key for sales and marketing management to improve customer relationships and drive growth. Organizational psychology, a subdivision of I-O psychology, is the field responsible for measuring job satisfaction in the workplace.
Step-by-step explanation:
The decision needs of those who manage various sales and marketing functions are most closely related to Customer Relationship Management (CRM). CRM involves strategies and practices that companies use to manage and analyze customer interactions and data throughout the customer lifecycle. The goal of CRM is to improve business relationships with customers, assist in customer retention, and drive sales growth. CRM compiles data from a range of different communication channels, including a company's website, telephone, email, live chat, marketing materials, and social media. Through the CRM approach and the systems used to facilitate it, businesses learn more about their target audiences and how to best cater to their needs.
Regarding the area of Industrial-Organizational (I-O) Psychology that measures job satisfaction, the correct answer is b. organizational psychology. Organizational psychology is primarily concerned with understanding individual behavior in social contexts within the workplace, focusing on employee attitudes, employee behaviors, and overall company culture. Job satisfaction falls under the purview of organizational psychology as it deals with how employees feel about their jobs, their work environment, their colleagues, and their organization's policies.