At 02.20 on Tuesday, a four-wheel-drive vehicle plunged over the edge of a steep mountain pass and burst into flames as it reached the valley bottom. There were no survivors. The sole victim has been identified as Mr John Joseph Broon of Muckty, a village 3 km from the scene of the accident. It is also known that: John Broon was an alcoholic who had sought help from Alcoholics Anonymous. John Broon had been at the local pub from 18.00 on Monday to 02.10 on Tuesday. John Broon had a wife and two children. The barperson at the local pub had served John all night. The drive from the local pub to John's house took 15 minutes along a narrow twisty road, which hugged the mountainside. A dead sheep was found on the side of the valley, 100 metres from where the car left the road.

Question: John Broon had swerved to miss a sheep on the narrow road and had gone over the edge of the valley side.
Options:
A. true, B. false, C. uncertain
Answer: "C"