Please refer to section 8.2.1 in the PRINCE2 Manual. (The answer describes a ‘favourable’ impact
on objectives, i.e. an opportunity, the other options are ‘negative’ impacts, so would be threats)

A.
A competitor may launch a rival product first thus affecting the expected market share for the
product

B.
It is possible that the product completes user acceptance testing in a single test cycle rather
that the scheduled two

C.
A prototype may be damaged in transit

D.
A critical meeting could be affected by air travel disruption