In a survey of university students, 60% planned to get a bachelors degree,
25% a masters degree, and the remainder a doctorate degree. If survey participants are
selected at random, what is the probability that

if we randomly select 3 university students, none will plan to pursue a doctorate?
a. 0.0034
b. 0.0045
c. 0.0156
d. 0.2160
e. 0.6141