T(t)T, left parenthesis, t, right parenthesis models the temperature (in degrees Celsius) in Windhoek, Namibia when it's ttt hours after midnight on a given day. ttt 666 999 131313 T(t)T(t)T, left parenthesis, t, right parenthesis 191919 252525 313131 When did the temperature increase faster? Choose 1 Choose 1 (Choice A) A Between 6\text{ am}6 am6, start text, space, a, m, end text and 9\text{ am}9 am9, start text, space, a, m, end text (Choice B) B Between 9\text{ am}9 am9, start text, space, a, m, end text and 1\text{ pm}1 pm1, start text, space, p, m, end text (Choice C) C The temperature increased at the same rate over both intervals