13. Opportunity cost is Select one: a. zero when a market is in equilibrium b. measured in terms of what has been foregone ca financial expense d. the best way to allocate resources 6. Which of the following statements about factors of production is false? f Select one: a. The factor of production termed capital means the money which the owners of firms need in order to set their firms up b. The term factors of production is another term for resources c. The factor or production termed land means natural resources. d. The factor of production termed labour means human resources FI