The question was to select which word would fill in the blank (x) below:
えきから たいしかんまでの （X）をかいて ください。
The options to select as correct answers were:
１．しゃしん ２．ちず ３．てがみ ４．きっぷ
I thought the answer was 4, with the translation being "Please buy a ticket from the Station to the Embassy.
However, it seems the answer given in the booklet was 2.
It seems to me that both answers are plausible, is there something in the translation that I'm missing?