In the context of the perception process, which of the following is a difference between attention and retention?
a. Attention is an involuntary process, whereas retention is a voluntary process.
b. Retention is the process of memorizing information after we have perceived something, whereas attention is the process of noticing, or becoming aware of, particular stimuli.
c. Attention is the process of incorporating new information into our existing knowledge, whereas retention is the process of attaching meaning to new knowledge.
d. Retention of information is not affected by perceptual filters, whereas attention to information is affected by perceptual filters.