成膜物质是由特殊单体合成的长链高分子聚合物，用以保证漆膜属性。

The table above shows the cancellation fee schedule that a travel agency uses to determine the fee charged to a tourist who cancels a trip prior to departure. If a tourist canceled a trip with a package price of$1,700 and a departure date of September 4, on what day was the trip canceled ？（）

(1)The cancellation fee was $595.

(2)If the trip had been canceled one day later, the cancellation fee would have been $255 more.

A．条件(1)充分，但条件(2)不充分．

B．条件(2)充分，但条件(1)不充分．

C．条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．

D．条件(1)充分，条件(2)也充分．

E．条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．