A researcher wants to test if the rate of smoking among adults in Honolulu is different than thenational rate of 18%.He suspects that the rate is lower since Hawaii has strong anti-smoking legislation and the rate was 15% in 2010.He will use a random sample of 400 adults.Select the mostconservativehypotheses.

a.H0:p=.18, Ha:p<.18

b.H0:p=.15, Ha:p<.15

c.H0:p=.18, Ha:p.18

d.H0:mu=.18, Ha:mu.18