B (Nondeclarative memory, or procedural memory, involves skills and associations that are acquired and retrieved at an unconscious level. Knowing how to use your phone or how to sing a song are examples of nondeclarative memories. In contrast, declarative memory is the storage and retrieval of material that is available to consciousness and can be in principle expressed by language. Examples of declarative memory are the ability to remember a phone number, the words to a song, or a past event.)