（辨析主题句）Choose the best topic sentence from the four options belo

（辨析主题句）Choose the best topic sentence from the four options below. Write the corresponding letter of your choice on the Answer Sheet.

Your choice:
A、 Shopping at a catalogue store isn't as satisfying as going to a regular department store.
B、 The catalogue salesclerks don't seem to know much about the products they sell.
C、 How shopping at a catalogue store compares with shopping at a department store.
D、 We don't get to look at the goods before buying it.
【正确答案】：A