Running is being used as a gerund working as a noun
The main reason why Franz Kafka, before his death, instructed his friend Max Brod to destroy all his unpublished manuscripts was because he didn't want his unfinished work to be read.
The answer is A. Fossils have been found by the local science club. Since the verb, found, is being done to the subject, fossils, it is in the passive voice. The others are in the active voice since the action is being done by the subject.