Final answer:
The flaw in Richard's plan is a cultural oversight regarding the Islamic practice of prayer and rest on Fridays in Morocco, potentially hurting productivity and employee morale.
Step-by-step explanation:
The flaw in Richard's plan to improve the efficiency and revenue of Howley Home's business in Morocco by requesting shipments on Fridays and increased working hours is a lack of cultural awareness. The correct answer is c. Morocco is a Muslim country in which most people practice Islam, which means that Fridays, particularly Friday afternoons, are times for prayer and rest for many Muslims. Thus, Richard's expectations may conflict with the local culture and religious practices, which could lead to dissatisfaction among workers and suppliers, negatively impacting productivity and working relationships.