Choose the One Alternative That Best Completes the Statement or Answers

Choose the one alternative that best completes the statement or answers the question.
-A thermometer reading $33 ^ { \circ } \mathrm { F }$ is brought into a room with a constant temperature of $80 ^ { \circ } \mathrm { F }$ . If the thermometer reads $45 ^ { \circ } \mathrm { F }$ after 4 minutes, what will it read after being in the room for 6 minutes? Assume the cooling follows Newton's Law of Cooling:
$$\mathrm { U } = \mathrm { T } + \left( \mathrm { U } _ { \mathrm { O } } - \mathrm { T } \right) \mathrm { e } ^ { \mathrm { kt } } \text {. }$$
(Round your answer to two decimal places.)

A) $25.32 ^ { \circ } \mathrm { F }$
B) $71.98 ^ { \circ } \mathrm { F }$
C) $49.8 ^ { \circ } \mathrm { F }$
D) $110.2 ^ { \circ } \mathrm { F }$