S18
= S18
{c}
{scope}
Complete official worked answers: https://www-thphys.physics.ox.ac.uk/people/AndreiStarinets/aqm_exam_solutions_2016.pdf. The separately held Oxford S18 extract matches questions 1–3 on booklet pages 19–21; this section is intentionally skipped under the existing-answers policy, not left as a source-data TODO.