Answer :
The most appropriate unit for the rate of filling a bucket with water is (C) cubic feet per minute.
1. When measuring how quickly water fills a bucket, you are looking at the volume of water entering the bucket over time. Cubic feet is a unit of volume, which is suitable for measuring how much water is added to the bucket.
2. The rate at which the water fills the bucket is given in minutes. This indicates the time it takes for a certain volume of water to fill the bucket. Therefore, cubic feet per minute provides a clear and meaningful way to express the rate of filling the bucket with water.
