How many Becquerels are equivalent to 0.5 curies?

• A. 1.85 × 10¹⁰ Becquerels
• B. 7.4 × 10¹⁰ Becquerels
• C. 3.7 × 10¹⁰ Becquerels
• D. 2.1 × 10⁹ Becquerels

Answer: (A)