Which of the Following Correctly Uses Parentheses

Which of the following correctly uses parentheses?

A) The plaintiff sued the defendant for breach of contract. (It was a real estate contract) .
B) Marla went to the theme park with Jennifer. (They spent the entire day there.)
C) The mayor presided over the ceremony. (And the parade) .
D) None of the above.
E) We saw Reggie's hot air balloon (which was shaped like a hamburger) .
F) Reggie's hot air balloon was voted "best in show" (Reggie was given a trophy) .
G) Reggie's hot air balloon was shaped like a hamburger (and advertised his restaurant.)
H) The hot air balloon (Reggie used it to advertise his restaurant) was shaped like a hamburger.
I) The movie theater charged $7.50 (the movie wasn't worth it) .
J) The Charlie Chaplin movie was silent (but very funny.)
K) Amelia Earhart was a famous aviator. (She is believed to have crashed in the Pacific) .
L) Eisenhower was a general during World War II (and later elected President) .
M) The movie theater (on Main Street) charged $7.50.
N) Silent movie actors (the best example is Chaplin) became the first Hollywood stars.
O) Both of the above.
P) Neither of the above.