For service penetrations needing listed fire-stop systems through rated gypsum board, what is the first disciplined field prerequisite before sealing entire clusters?

Choices

• (A) Spray canned foam arbitrarily from stock scraps
• (B) Match engineered system ID to annulus geometry and curing window with QA sign-off samples
• (C) Delay fire protection until electricians finish arbitrarily
• (D) Combine two mismatched caulks suggested by unofficial staff