Final answer:
Social change is probably the MOST difficult environmental factor for owners and managers to forecast, influence, or integrate into business plans.
Step-by-step explanation:
Social change is probably the MOST difficult environmental factor for owners and managers to forecast, influence, or integrate into business plans. Social change refers to the changes in attitudes, behaviors, and values of individuals and groups within a society. These changes can be unpredictable and may significantly impact consumer preferences, market demands, and business strategies. For example, the rise of social media and the influence of online platforms have revolutionized the way businesses engage with consumers and market their products.