<span>Czar Ivan the Terrible, rapacious for blood, instituted a reign of terror against the nobility of Moscow</span>, while <span>some politicians are easily corrupted if someone with a special interest plies them with money</span>.
Answer:
A
Explanation:
Only the biography states their father was a minister.
From the third line of the biography, the second sentence started with explicitly saying that their father was a minister. A fact which isn't mentioned anywhere in the extracted memoir. The memoir gave a much more different insight and even personal perspective to how both brothers lived. But it never stated the occupation of their father beyond he being their father
The event is the letters from the school