Final answer:
The correct answer is option B) 1564.
Step-by-step explanation:
The epistle written by Ivan IV, also known as Ivan the Terrible, in response to Prince Andrew Kurbsky is a historic piece of correspondence that provides insight into the political and personal dynamics of 16th century Russia.
This exchange between Ivan IV and his former general Kurbsky is particularly significant because it reveals aspects of Ivan's rule, his personality, and his governance strategies during a tumultuous period in Russian history.
The correct answer to the question of when this epistle was written is B) 1564.