Consider the following set of real numbers: - sqrt(7),- sqrt((15)/(4)),-(0.)/(b)ar (7),1.5, sqrt((36)/(9)), sqrt(25) Which of the following contains all of the irrational numbers in the set?
1) - sqrt(7),- sqrt((15)/(4)),-(0.)/(b)ar
2) 1.5, sqrt((36)/(9)), sqrt(25)
3) - sqrt(7),- sqrt((15)/(4)),-(0.)/(b)ar (7),1.5, sqrt((36)/(9)), sqrt(25)
4) None of the above