If the physical memory size is doubled without changing any of its other parameters, the number of entries in the page table
a.
doubles
b.
reduces by 1 bit
c.
remains unchanged
d.
halves
e.
increases by 1 bit

C) remain unchanged  

Explanation:

If the number of entries in the page table are basically decide by the size of virtual address. Each entry in the page table contain a frame number. Basically, page table are used by the virtual memory as data structure in computer system.

And the size of the page are not affected by the physical memory size so that is why, it remain unchanged.  

Therefore, Option (C) is correct.

answer; numerous occupation(s);