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Which sentence below uses the correct verb form?
A. Lisa's dad, one of the firefighters in town, were praised as a hero for rescuing a young boy.
B. Lisa's dad, one of the firefighters in town, have been praised as a hero for rescuing a young boy.
C. Lisa's dad, one of the firefighters in town, was praised as a hero for rescuing a young boy.
D. Lisa's dad, one of the firefighters in town, are praised as a hero for rescuing a young boy.
What is C. Lisa's dad, one of the firefighters in town, was praised as a hero for rescuing a young boy?