The expression all these trends in line 74 refers to...

A

‘The recent regulatory environment’ (line 56) and ‘the global economy and hard times’ (line 65)

B

‘forms of co-operation, alliance, load sharing and partnership’ (lines 66-67)

C

‘Sociological and personal reasons’ (line 71)

D

the professional need for a common language both in the hangar and at the ramp.’ (lines 71-73)

E much increased reliance upon language and upon a single language, English’ (lines 75-76)