In the following passage some words have been deleted.Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each blank.
Louis Braille was a Fench educator and inventor (1)________a system of reading and writing for the visually impaired. His system(2)________virtually unchanged to date and is known worldwide simply as braille. Blinded (3)________both eyes as a result of and early childhood (4)______Braille mastered his disability while still a boy. He (5)_________at school and received a scholarship to the Royal Institute for Blind Youth.
Select the most appropriate option to fill in blank No. 1.

Options

A. A)from
B. by
C. C)in
D. D)of

Answer

D