Answer:
The key factor of competitiveness among the options provided is:
a. size of organization
Step-by-step explanation:
The size of an organization is not necessarily a key factor in determining competitiveness. Competitiveness is often influenced by factors such as price, flexibility, product differentiation, and after-sales service. While the size of an organization can play a role, it is not universally considered a key factor in determining competitiveness.
