Which sentence uses parentheses correctly?

Responses
A Jonathan did not want any more pumpkin pie) he felt sick already.Jonathan did not want any more pumpkin pie) he felt sick already.
B The lampshade (which was a family heirloom) somehow survived the fire.The lampshade (which was a family heirloom) somehow survived the fire.
C The two brothers (who had never gotten along decided to go on a hiking trip together.The two brothers (who had never gotten along decided to go on a hiking trip together.
D Ted and Eli (because they were expert campers lit the campfire in less than a minute.

B The lampshade (which was a family heirloom) somehow survived the fire.

In sentence B, the parentheses are used correctly to enclose additional information that is not essential to the main sentence but provides extra context. The sentence would still make sense if the information within the parentheses were removed.