Afact is true and can be proven, while a(n) is someone’s belief or idea.
a. device
b. opinion
c. reason
d. fallacy

B)Opinion

Someone´s belief of idea is what we often call an opinion, could be based on facts, or not, but its personal and it can be changed, while a fact can not, a fact is something that can be proven, for example, water boils at 100 celcius degrees, if your opinion is that it doesn´t, it wont change the fact the it will boil when heated up to 100 celcius degrees.

im just here for the points

explanation:

churchill's serious tone makes it seem as though he is giving bad news rather than rallying support.