Question

Your grandfather explains to you how to use his new multifunctional phone. You ask him where he learned to use his new phone but he cannot recall. Trying his best, he can only tell you how it works. It is clear that your grandfather has limited ____.

Answer 1

Memory

Step-by-step explanation:

Grandfather cannot remember a lot of things and has a limited memory.

Answer 2

It is clear that your grandfather has limited source memory.

Step-by-step explanation:

Source memory is considered to be a kind of "accidental" memory, that is to say it implicates how a memory came to be such. In other words, it is how somebody remembers the origin of something he/she learned (in this case, where your grandfather learned to use his new phone). It can be affected by ageing, stress, or intoxication, and the person affected recalls some fragments of a memory without being able to remember where they came from.