Cream and coffee mix easily. Joy and sadness mixes easily. The similie represents how emotions can change/mix considerably.
Choice a : Explains what the nations need to do and elaborates some.
--wrong answers--
Choice b only gives a statement of what the nations need to do.
Choice c is a question.
We can determinate in both stories that definitely the outside conditions can determinate and influenciate the protagonists decisions and the ways they finally choose for the rest of their lives.
<em>Barrio boy </em>and <em>No gumption </em>have a common point: the external conditions are extremely unfavorable for life development of the main characters: in Galarza´s tale, the family had to emigrate to another country due to violence generated for revolution, and in the case of Baker´s autobiobraphy is the big depression the main reason which his mother searched a job as a newspapers seller.
Even we can find a very clear difference between stories: In Galarza´s story, the main character found a real interest and genuine curiosity about his fate, the fact to constantly traveling and face another cultures; while in Baker´s tale, show us a kid totally unhappy with his job that confirm us an evident lack of interest for the one.
Finally we can highlight that, in <em>barrio boy</em>, constantly travelling and the workers world contact and their daily live give to the author the opportunity to become in an union worker and in that way fell himself identified with their cause; In <em>No gumption </em>the author when he finally found out he is not a good newspapers salesman, not even care to try it to be a good one, find the way to begin to write and finally realized he is a good writer.
I would say that all scenarios that are not too complex could be a basis for a short story, but also in principle, you could shorten and simplify any story to make a short story out of it!
So there is no clear distinction.
But among the options, the better candidates are:
a championship basketball game in which a new player is the star
a family mix-up over selecting a birthday present for Dad
the mysterious disappearance of a cake from the pantry
The other options are potentially too complex.