The correct option is (A): \(\frac{5}{7}\)
Explanation: Explanation: There are 2 red, 3 green, and 2 blue balls in total. The probability of drawing a blue ball is \(\frac{2}{7}\). Therefore, the probability that the drawn balls contain no blue balls is\( ( 1 - \frac{2}{7} = \frac{5}{7} )\)