In a Mathematics class of 30 students, 17 are boys and 13 are girls. On a unit test, 4 boys and 5 girls made an A grade. If a student is chosen at random from the class, what is the probability of choosing a girl or an 'A grade student'
1
\(\frac{17}{13}\)
2
\(\frac{13}{30}\)
3
\(\frac{17}{30}\)
4
\(\frac{13}{17}\)