Respuesta :
The choice that shows the best way to join two independent clauses with a semicolon is the first choice:
My brother is a computer whiz; I can barely type my name.
The other possible choice would be the second sentence, but since more than I do is not an independent clause, this cannot be the correct answer.
My brother is a computer whiz; I can barely type my name.
The other possible choice would be the second sentence, but since more than I do is not an independent clause, this cannot be the correct answer.
Answer: the correct answer is My brother is a computer whiz; I can barely type my name.
Explanation: in the other options, you just need a comma.