Asocial learning theorist believes that cognition is a. unimportant to explaining behavioral outcomes and processes b. one of the keys to understanding behavioral outcomes c. used only before conditioning takes place d. capable of being directly observed, tested, and verified

Social learning theory joins cognitive learning theory which suggests that learning is influenced by psychological factors.
On the other hand, behavioral learning theory assumes that learning is based on responses and reactions to environmental stimuli. 
 Theorists integrated these two theories. They soon came up with four essentials for learning:
=>observation (environmental)
=>retention and reproduction (cognitive)
=> motivation(both)
Thus, the answer letter B.