Sally is gonna purchase bird feeders for her property. three nurseries in the area sells bird feeders and she plans to buy from one of the three nurseries. what answer describes the sample and the population? answers: a) sample: all available bird feeders at all three nurseries population: all available bird feeders at all three nurseries b) sample: all available bird feeders at all three nurseries population: all available bird feeders at one nursery c) sample: all available bird feeders at one nursery population: all available bird feeders at all three nurseries d) sample: all bird feeders at each nursery population: all available bird feeders at all three nurseries