Which replacement corrects the spelling error in this sentence?
In the early 1990s, my uncle started studying architecture, and except
for two years he spent in the Peace Corps, its the only thing he has
done since.
O A. In the early 1990s, my uncle started studying architecture, and
except for two years he spent in the Peace Corps, it's the only
thing he has done since
OB. In the early 1990s, my uncle started studying architecture, and
except for two years he spent in the Peace Corps, its' the only
thing he has done since.
O C. In the early 1990s, my uncle started studying architecture, and
accept for two years he spent in the Peace Corps, its the only thing
he has done since.
D. In the early 1990s, my uncle started studying architecture, and
except for too years he spent in the Peace Corps, its the only thing
he has done since.