Which statement best describes how the neutron cross-section affects shielding design?

Which statement best describes how the neutron cross-section affects shielding design?

• A. Materials with high cross-sections are more effective neutron absorbers, reducing leakage.
• B. The cross-section has no impact on shielding thickness.
• C. A high cross-section makes materials worse at absorbing neutrons.
• D. Cross-section only affects activation, not shielding.

Answer: (C)