Select the correct answer.
kayla set up an outdoor digital thermometer to record the temperature overnight as part of her science fair project. she began recording the temperature, in degrees fahrenheit, at 10: 00 p. m. kayla modeled the overnight temperature with function t, where h represents the number of hours since 10: 00 p. m.

t(h) = 0.5h2 − 5h + 27.5

what is the lowest temperature and at what time did it occur?
a.
15°f at 3: 00 a. m.
b.
15°f at 5: 00 a. m.
c.
5°f at 3: 00 a. m.
d.
5°f at 5: 00 a. m.