# Lesson 3 complete: deal-breakers solid (incl. C/E re-test)

Learner finished lesson 3 with all quiz answers correct. Can reject multi-tab bus, token-in-Web-Storage, bulk-data, and “always available” proposals; can green-light tab-scoped wizard step use. Lesson 2 soft spots (sessionStorage `storage` does not cross tabs; availability needs setItem/removeItem probe) re-tested successfully. Next: decision playbook (mission payoff) — full briefs assembling gates A–D without re-teaching method map.