Why must concrete breakout cones be screened before relying only on epoxy bond lengths for clustered anchors?

Choices

• (A) Concrete edge breakout can precede adhesive failure when embedments crowd a thin edge
• (B) Breakout cones never interact with reinforcing congestion
• (C) Epoxy adhesives negate all concrete tensile rupture mechanics
• (D) Anchors spaced at 6d eliminate breakout regardless of geometry