Katrina is training her dog to sit whenever she points at him. She repeatedly points right before giving a verbal command. Her dog gradually learns to associate the pointing with the verbal command and will eventually sit when she points without the verbal command. This process of gradual learning is known asa. habituationb. acquisitionc. extinctiond. spontaneous recovery

Which is the best conclusion that can be drawn regarding the status of african-americans in the south in the late 1800s? a) african-americans made tremendous political, social, and economic advancements during the reconstruction era. b) passage of the 13th, 14th, and 15th amendments to the u.s. constitution guaranteed equal status and rights for all african-americans. c) the reconstruction policies enacted by the federal government were highly effective in african-american citizens transition to life after slavery. d) although african-americans had equal rights under federal law they were still economically, politically, and socially inferior to whites in the south during the reconstruction era.