The three stages of memory are . A. Automatic processing, effortful processing, and storage B. Automatic processing, effortful processing, and retrieval C. Encoding, processing, and storage D. Encoding, storage, and retrieval

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

answer; basic psychology;

answer; randomized controlled trials;

answer; speaker;