Working memory differs from short-term memory in that:
a. short-term memory has unlimited capacity.
b. working memory has unlimited capacity.
c. working memory is concerned with both holding and processing information.
d. short-term memory consists of a number of components.

The best answer is"C"

working memory is concerned with both holding and processing information.

Explanation:

Short term memory is embedded in working memory. working memory contains of what you are consciously aware of in a particular time frame which is the only active part of memory. short term memory is dependent on Working memory

to describe how it carries out some of it's active control processes that include rehearsal and recoding.

working memory retains and uses, while short-term simply retains.

c. working memory is concerned with both holding and processing information

Explanation:

Working memory differs from short-term memory in that:

Short term memory is the memory that is use for short term retention while working memory is the one that process and retain information.

Short-term memory is part of working memory.

They are both limited in capacity.