Answer:
threats of substitute products and services
Step-by-step explanation:
The Porter's five forces model is used to analyze the competition level which can be faced by the company within an organization or with others in the market .
The five forces are as follows -
1 . Industry rivalry .
2. Bargaining power of supplier .
3. Bargaining power of buyer .
4. Threat of substitutes .
5. Threat from new entrants .
In the case given in the question , the correct answer would be 4. Threat of substitutes .