Explanation of Inconsistency

Here is a brief explanation as to why your answer selection represents a logical inconsistency.

Let

A be the statement:
The physical world is causally closed.
B be the statement:
One can know that minds exist purely through empirical observation.
C be the statement:
It is possible that technology will allow one to "upload" and transfer one's experience and memories.
D be the statement:
It is possible for one's mind to exist outside of one's material body.

Then A implies not B or not C as follows:

C implies D because
When one uploads their experiences and memories, they cause their mind to exist outside of their body.
A implies not B or not D because
If the mind is physically independent of the material body but the physical world is closed, empirical observation of the material body cannot be sufficient to determine the existence of a mind.