Question

a common type of difficulty that older adults have due to brain shrinkage is that it interferes with:

• being able to perform multiple tasks simultaneously.
• performing basic arithmetic calculations.
• remembering words.
• being able to concentrate on a single task at hand.

Explanation:

Brain shrinkage in older adults often affects cognitive functions related to multitasking. Multitasking requires coordinating multiple cognitive processes, and age - related brain changes (like shrinkage) can disrupt the ability to switch between tasks or manage multiple tasks at once. Basic arithmetic calculations are more related to specific mathematical or cognitive skills that aren't primarily affected by general brain shrinkage in the same way. Remembering words is more related to language - specific memory systems, and concentrating on a single task is less affected by brain shrinkage compared to multitasking. So the correct option is the one about performing multiple tasks simultaneously.

Answer:

being able to perform multiple tasks simultaneously.