Calculate the percent of RDA for selenium provided by a day's intake containing 1 serving of Brazil nuts (1 nut ≈ 68 µg selenium) and 150 g tuna (selenium 40 µg). Use adult RDA = 55 µg. Show calculations and give the percent rounded to nearest whole percent.

• A. Approximately 54% of the RDA for selenium.
• B. Approximately 250% of the RDA for selenium.
• C. Approximately 196% of the RDA for selenium.
• D. Approximately 98% of the RDA for selenium.

Answer: (C)