Final answer:
Declarative memory involves information that can be consciously recalled and articulated, covering both episodic and semantic memory, whereas nondeclarative memory includes skills and tasks learned through experience, helping in task performance without conscious awareness.
Step-by-step explanation:
Psychologists use the term declarative memory to describe memory for information that is able to be articulated, while nondeclarative memory describes memory for information that aids performance of tasks. The correct answer to the question is option c. declarative; nondeclarative. Declarative memory is a type of long-term memory of facts and events that we can consciously recall and articulate, such as what we experienced at last year's birthday party or knowing who the first African American president of the United States was. This type of memory encompasses both episodic memory, which is autobiographical, and semantic memory, which deals with facts and general knowledge. On the other hand, nondeclarative memory, also known as implicit memory, is not part of our conscious awareness but helps us perform tasks such as riding a bicycle or playing a piano, which are learned through practice and experience.