Andrew, MMMMM Yes Ok,
Richard Melville goes to some length explaining the codes to us in the buyers guide of the current issue, FT, GT, ST, First test, group test and so on.
So looking in the buyers guide in the current issue of the magazine under integrated amplifiers, I see the 740a has FT next to it, so this means that What Hifi must have reviewed it a some point in the past?
This then means that answer (b) cannot be correct.
This then just leaves answer (a). Now this must be the correct answer then?
I don't know who the "Greys" are but are very small beings that tangle up all the cables behind your HiFi in the middle of the night, and then either hide remote controls down the back of sofas, or nick batteries out of the remotes in the middle of the night ?