Select the correct answer.

The temperature of a cup of coffee was 192°F when it was poured. A thermometer was placed in the cup, and its temperature was recorded every five minutes, as shown in the table.

Minute Temperature
5 175°F
10 153°F
15 143°F
20 131°F
25 115°F
30 106°F

Assuming that the relationship is exponential, approximately how warm will the coffee be after 40 minutes?

A.
79°F
B.
85°F
C.
96°F
D.
98°F