A company is developing a weather forecast application that displays forecasts for towns and cities...

A company is developing a weather forecast application that displays forecasts for towns and cities in a single country for a specified date range. The application stores weather data in an Amazon DynamoDB table named Forecasts. The Forecasts table has attributes named CityId, Temperature, and ForecastDate. The company expects the application to be read-heavy and that the vast majority of reads will target the current day’s forecast for one of a small number of very large cities. The company needs to design a partition key configuration that will yield the most even distribution of read requests for the application ' s expected use case. Which solution will meet these requirements?