Everybody's blood pressure differs over course of the day. In the certain individual resting diastolic blood pressure at time t is provided by B(t) = 80+ 7 sin(piet/12), where t is measured in hours since midnight and B(t) in mmHg (millimeters of mercury). Determine person's diastolic blood pressure at
(i) 6:00 am
(ii) 10:30 am
(iii) noon
(iv) 8:00 pm