Answer:
B. Louis' accident ended up improving the lives of blind people everywhere.
Explanation:
The "accident" being referred to here is how Louis Braille became blind. As a young boy he slipped into his father's workshop and used a tool wrong which pierced his eye and caused infection, rendering him blind.
This caused him to be unable to read normally, which is why is why he had to consort to reading the raised bumps on a page, and eventually developing the Braille system which improved the lives of blind people everywhere.
Answer:
A
Explanation:
Why the others are incorrect:
B: The comma isn't really introducing anything, it's just breaking the sentence up from the speaker.
C: There isn't any need for a comma between beginning and with
D: There isn't any need for the commna between are and math.beginning
an explorer who sails into unknown parts of the world too discover new land
