What kind of information is conveyed in the dialogue from The Miracle Worker?

Even Captain Keller's feelings are revealed in the dialogue—he can barely take any more. He is even giving up on finding a solution. He refers to any doctor as "a new quack" (Act I), revealing that he has lost faith in the medical profession's ability to help his daughter.

since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.

the answer is c. according to past decisions, free speech is not unlimited.