i Am struggling with this practice test problem. Please help explain to me the following.

Choose an industry and identify a market leader in the industry. (e.g., Industry: Smartphone industry; Market Leader: Apple)

• Identify one company that poses a threat of imitation to the market leader. Explain your reason.
• Identify what product, service, or company can pose a threat of substitution to the market leader in that industry. Explain your reason.