Answer each question for your own team. If every yes falls inside B, B is enough; one need that only C meets can be bolted onto B by itself.
Do you need to…
A · Narrow
B · Wider view
C · Wider view + modules
Compare both audiences at every stage?
–First stage only
✓
✓
Compare the story against two named rivals in each market?
–One rival
✓
✓
Hear what a second-language reader is told in each market?
–
–
✓
Trace every source behind the answers, claim by claim?
–Main sources
–Main sources
✓