What can you use in your writing to evoke a better sense of mood?
a. appropriate comparison
b. plot contrivances
c. historical accuracy
d. an anticlimax

A would be correct. Think about it; plot contrivances are of the mistaken identity type, so they wouldn't help the mood. Historical accuracy wouldn't either, because its just who was where when. Anticlimax is basically a disappointing end to a story, and trust me, those definitely don't improve the mood. Appropriate comparison makes the most sense.

I hope this is right. 

what can best be inferred from this excerpt is the pittsburgh pirates had a winning season in 1972., the specific information about the year is provided in the excerpt.

the other options are not correct because we can not assure that roberto clemente was the best since we don't know the information about the other players, there are no mentions about any specific fan either and it is clear that not many batters can make it to   3000 hits because it is mention as a high number.