Technically true, but also all that much more difficult to pull
off, so I didn't want to say so.
Based on syllabus
Grading Conditions
Candidates’ results are based on the aggregation of their marks
in the various papers, i.e. there are no hurdle conditions under which a prescribed
level of performance in an individual paper prevents the award
of an A level
result.
In fact, you still can get an A if you failed SPA,
but that will mean a near perfect P1 - P3.