The primary purpose of this passage is to
c. entertain
Step-by-step explanation:
The passage in a few short and crisp sentences is written to present a rather bizarre and funny story about a dog that dies and the two coquettish women who have to carry it on the train to give it a proper burial.
The German shepherd that dies had to be buried somewhere but the insistence on a proper burial makes it to be carried on the subway where it is stolen and the last sentence makes this a tell tale work of entertainment.
The last sentence anticipates the element of surprise for the thief when they will see inside the suitcase.