Answer:
Option D, 12
Explanation:
The least common denominator (LCD) is the lowest multiple that two or more denominators share.
To find the LCD, list multiples of each denominator.
For denominator 3, these multiples are: 3, 6, 9, 12, 15, 18, 21, 24,...
For denominator 4, these multiples are 4, 8, 12, 16, 20, 24, 28, 32,...
The lowest multiple the two denominators share is 12. They also share 24 as a multiple, however, it is not the lowest shared number in each set. Therefore, the least common denominator (LCD) for this question is option D, 12.