A property of control processes in the modal model of memory is that they:

a. do not require attention.

b. may differ from one task to another.

c. are performed without conscious awareness.

d. are difficult to modify.

(B) - may differ from one task to another.

Explanation:

The Modal Model of Memory, also known as the Multi Store Model of Memory, is a theory that was developed by Richard Atkinson and Richard Shiffrin in 1968. The Modal Model of Memory also explains how memory processes work. The multiple model, consisting of three parts, was first described by the two Richards. William James described a primary and secondary memory in the latter years of the nineteenth century. In his theory, primary memory consisted of thoughts that were stored in consciousness for a brief time and secondary memory consisted of permanent, subconscious storage.

Later, Richard Atkinson and Richard Shiffrin added a third level to this theory: the sensory register of the brain. They also came up with the idea that the brain has various control processes that regulate the transfer of memory.

A valuable aspect of the Modal Model of Memory is that it's supported by scientific evidence, something that's fairly difficult in theories regarding something as abstract as memory. In an attempt to cure severe epilepsy, part of a patient's hippocampus was removed. This led to the problem of this person being unable to transfer information from his short-term memory to his long-term memory. In other words, the patient was incapable of creating long-term memories. This person was living proof of the idea that there are multiple levels of memory.

Answer: the correct option is A (do not require attention)

Explanation:

A property of control processes in the modal model of memory is that they do not require attention.