A school has 4 clubs A, B, C and D. IX class has 30 students. Its 6 students are in club A, 7 in club B, 2 in club C and rest in D. A single student is selected at random from the class to act as class monitor. The probability that the selected student is from club A or D is:
1
\(\frac{7}{10}\)
2
\(\frac{1}{2}\)
3
\(\frac{1}{5}\)
4
\(\frac{17}{30}\)