According to the ‘AMC & GM to Annex III (Part-ORO) to Commission Regulation (EU) No 965/2012, AMC1 ORO.FC.125, which is related to Differences training, familiarisation, equipment and procedure training, is prescribed that:
GENERAL
(a) Differences training requires additional knowledge and training on the aircraft or an appropriate training device. It should be carried out:
(1) in the case of aeroplanes, when operating another variant of an aeroplane of the same type or another type of the same class currently operated; or
(2) in the case of helicopters, when operating a variant of a helicopter currently operated.
(b) Familiarisation requires only the acquisition of additional knowledge. It should be carried out when operating another helicopter or aeroplane of the same type;
Therefore, the correct answer is “Differences training”.
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