Which of these statements applies to the topic of attention? Choose all that apply.

(a) Attention is generally improving with each generation.
(b) It is a complex process that can be "decomposed" into numerous sub-processes.
(c) "Attention" refers to the process of holding an object in awareness in a way that makes it available for action.
(d) The distinction between System 1 (hot/fast) and System 2 (cold/slow) is relevant.