Question #N906

The school board meeting was a long one, lasting well past midnight; however, the teachers were energized by the conversation.

Which choice best corrects the punctuation error in the sentence?
A. The school board meeting was a long one, lasting well past midnight however, the teachers were energized by the conversation.
B. The school board meeting was a long one, lasting well past midnight, however, the teachers were energized by the conversation.
C. The school board meeting was a long one; lasting well past midnight, the teachers were energized by the conversation.
D. The school board meeting was a long one, lasting well past midnight; the teachers were energized by the conversation.