The essential content(s) in each entry of a page table is / are
Virtual page number
Page frame number
Both virtual page number and page frame number
Access right information
Notice It is Page frame number. It is not just Frame Number because in multiple level page table using Frame Number may be little bit confusing.
Refer -> https://gateoverflow.in/490/gate2008-67
A page table entry contains
frame number ,Present bit ,Modify bit,valid bit, proaction bit
Other control bits And, page number is used to index this table.
It is (B).
The page table contains the page frame number essentially.
there is nothing called virtual page number that is saved in page table entry that's why it is wrong @amitqy.