Final answer:
The provided text does not match the question regarding Mr. Prizada's holiday card, thus preventing analysis of its symbolic significance. The correct context from the story would be required to provide an informed answer.
Step-by-step explanation:
The excerpt provided does not correspond to the holiday card mentioned in the question about Mr. Prizada. Instead, it describes an entirely different scenario involving a neglected letter in a card-rack.
Without the proper context of Mr. Prizada's holiday card from the actual text where it is mentioned, it is not possible to provide the symbolic significance of that card. Therefore, I'm unable to definitively answer whether the card is blank, has a picture of a family, is written in a foreign language, or contains a map.
In order to provide an accurate answer to that specific question, the correct text pertaining to Mr. Prizada's holiday card would be required. If you could provide the relevant passage or details from the story in which Mr. Prizada sends the holiday card, I would be able to analyze its symbolic significance and provide a more informed response.
Therefore answer is a) It's blank.