The answer is F i’m pretty sure
Tolerance to self<span> is due to the action of foreign </span>antigens<span> that inactivate the immune response to </span>one's <span>own tissues.
b. False</span>
This is an example of encounter structuring.
Encounter structuring refers to a situation in which a person will try to modify what they say in order to avoid a conflict. In this case, Sarah will refrain from talking about politics with her husband's family because they have different affiliations and are bound to have a fight, which happens every time she visits.
when the bond between the Tsar people had been broke this led to them not wanting to follow the rules of the diplomat, so this broke the trust they had, after a few riots had began to break out over scarcity of food in WWI