What must be provided in maintenance record entries for any maintenance done on the aircraft according to 14 CFR 43.9?
a) Date of maintenance, mechanic's signature, and number of hours flown since the maintenance
b) Description of work performed, date of completion, and mechanic's signature
c) Manufacturer's name, mechanic's name, and type of maintenance performed
d) Pilot's name, date of last flight, and fuel consumption during the flight