Correct Answer:
A. 17/12
The correct answer is 17/12. To add fractions 2/3 and 3/4, we need a common denominator. The least common denominator (LCD) of 3 and 4 is 12. Convert each fraction: 2/3 = 8/12, 3/4 = 9/12. Adding them: 8/12 + 9/12 = 17/12. 5/7 is the sum of numerators only, 5/12 is incorrect, and 7/12 is also incorrect. Therefore, 17/12 is the correct answer.