Final answer:
The labor relations term is the Cost-of-living adjustment
Step-by-step explanation:
The labor relations term for a written clause in a labor agreement which adjusts wages in accordance with changes in the consumer price index at specified intervals during the contract's term is the Cost-of-living adjustment (option a). This term refers to the practice of increasing wages to keep up with inflation. For example, if the Consumer Price Index (CPI) increases by 2%, wages would also increase by 2% to maintain the purchasing power of employees.