Many have heard me, yet nobody has seen me. I won’t speak back unless spoken to. What am I?

An echo!

Explanation:

Many people can hear an echo, but you can't see them obviously. An echo also only happens when another sound takes place which makes sense because of the line "I won't speak back unless spoken to."

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.

what are the phrases to choose from?