The forecasting time horizon that would typically be easiest to predict for would be the

The correct approach will be "short-range".

Explanation:

Forecasting would be an essential component of planning as well as decision-making, manufacturing operations need to be consistent regarding the forecast horizon. The forecast period or horizon seems to be the length of time to improve predictions within the distance.Usually, the short range would be less around three months and seems to have a period ranging approximately one year. It has been used in scheduling, ordering arrangements for employees, job responsibilities, level of the working population, level of a commodity.

So that the above is the appropriate one.

Your answer would be 625,000,000.