GKFix MCQ Question

What are the three stable isotopes of the oxygen atom?

• A. ¹⁶O, ¹⁷O, and ¹⁸O
• B. ¹⁵O, ¹⁶O, and ¹⁷O
• C. ¹⁷O, ¹⁸O, and ¹⁹O
• D. ¹⁶O, ¹⁸O, and ²⁰O