Ashlynn models the relationship between the temperature $C$ of a hot cup of tea (in degrees Celsius) and time $T$ since the tea was poured into the cup (in minutes) as $C=20+20 \cdot 0.88^T$. The temperature decreases when time increases, and passes points(0, 40). She wanted to graph the relationship over the first half hour. Here is her work: What mistakes did Ashlynn make when drawing the graph?
Choices:
A:Inappropriate scale for $x$-axis
B:Inappropriate scale for $y$-axis
C:Wrong/missing label for $x$-axis
D:Wrong/missing label for $y$-axis
E:Ashlynn didn't make any mistake
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: Ashlynn models the relationship between the temperature $C$ of a hot cup of tea (in degrees Celsius) and time $T$ since the tea was poured into the cup (in minutes) as $C=20+20 \cdot 0.88^T$. The temperature decreases when time increases, and passes points(0, 40). She wanted to graph the relationship over the first half hour. Here is her work: What mistakes did Ashlynn make when drawing the graph?
Choices:
A:Inappropriate scale for $x$-axis
B:Inappropriate scale for $y$-axis
C:Wrong/missing label for $x$-axis
D:Wrong/missing label for $y$-axis
E:Ashlynn didn't make any mistake
Please first conduct reasoning, and then answer the question and provide the correct option letter, e.g., A, B, C, D, at the end.
Question: Ashlynn models the relationship between the temperature $C$ of a hot cup of tea (in degrees Celsius) and time $T$ since the tea was poured into the cup (in minutes) as $C=20+20 \cdot 0.88^T$. The temperature decreases when time increases, and passes points(0, 40). She wanted to graph the relationship over the first half hour. Here is her work: What mistakes did Ashlynn make when drawing the graph?
Choices:
A:Inappropriate scale for $x$-axis
B:Inappropriate scale for $y$-axis
C:Wrong/missing label for $x$-axis
D:Wrong/missing label for $y$-axis
E:Ashlynn didn't make any mistake