Two inter-city railway carriages were found ablaze last night (10 March) on a siding near Glundal station. Three elderly men were seen at the station at 19.00 last night and reliable witnesses say that they were all over 6 ft tall and that one of the men had a bad limp. It is also known that: The carriages belonged to Southern Trains and were waiting to be repaired. Fred Wish is 6 ft 5 in tall and 58 years old. Bob Tuck is a retired train driver. The railway company made Rod Debbs redundant in January. The carriages had been taken out of service because of electrical faults. A violent thunderstorm occurred over Glundal on 10 March. John Plum is 64 years old and has just left hospital after a knee operation. Sixty-one-year-old Dennis White, a former railway worker, is 5 ft 6 in tall.

Question: Lightning could have started the fire in the railway carriages.
Options:
A. true, B. false, C. uncertain
Answer: "A"