Which choice shows the best way to join two independent clauses with a semicolon?

my brother is a computer whiz; i can barely type my name.
my brother knows a lot about computers; more than i do.
while my brother plays on his computer; i like to paint.
my brother is a computer whiz; but i am not.

When i was young enough to still spend a long time buttoning my shoes in the morning, i'd listen toward the hall: daddy upstairs was shaving, in the bathroom, and mother downstairs was frying the bacon. they would begin whispering back and forth to each other up and down the stairwell. my father would whistle his phrase, my mother would try to whistle, then hum hers backi drew my buttonhook in and out and listened to it -know it was "the merry widow." the difference was, their song almost floated with laughter. how different from the record, which growled from the beginning, as if the victrola were only slowly being wound up. they kept it running between them, up and down the stairs where i was now just about ready to run clattering down and show them my shoes. what is the effect of the parallelism used in the above excerpt? it establishes the rhythm of a duet to echo the song. it expresses the same ideas. it mirrors opposite ideas. it is a paradox.

What is most likely nelson mandela's purpose of using third person point of view after introducing himself in his introductory paragraphs

Identify how chekhov’s background and beliefs may have influenced his short story “the bet”.