According to the Introductory Discussion About Perceptual Processes

According to the introductory discussion about perceptual processes,

A) humans have relatively primitive perceptual processes, compared to models created by artificial intelligence.
B) although perception appears to be straightforward, it actually requires more cognitive effort than tasks such as problem solving.
C) unlike other cognitive tasks, perception requires only bottom-up processing.
D) perception requires both information from the stimulus and knowledge about previous perceptual experiences.