Aleading dental journal claims that 73% of young adults do not brush their teeth regularly. a dental hygienist wants to conduct a survey to verify this with her young adult patients, and wants to do so with a margin of error (me) of ± 7%. what minimum sample size, rounded to the nearest whole person, does the hygienist need to use?

a.)n ≥ 161
b.)n ≥ 200
c.) n ≥ 322
d.) n ≥ 158