A city government conducts a survey by randomly selecting 20 households (out of around 15,000 households in the city) to estimate their average monthly water consumption. The estimated average is 300 gallons per household.
What can you determine about this sample mean?

A. The estimated average of 300 gallons per household is likely to be close to the actual average monthly water consumption for all households in the city.
в. The estimated average of 300 gallons per household is NOT likely to be close to the actual average monthly water consumption for all households in the city because the sample size is too small.
C. The estimated average of 300 gallons per household is NOT likely to be close to the actual average monthly water consumption for all households in the city because NOT all households were surveyed.