Question

It is the responsibility of the consumer to obtain _____ as a proof of purchase of goods. A) Invoice
B) Cash receipt
C) Warranty card
D) All of the above

Answer 1

Answer:

B) Cash receipt

here is your answer!

Answer 2

Well, if it's an Electronic item then warranty card is necessary along with cash receipt and invoice.
Invoice is required for food grains and also cash receipt is required for any other goods purchases.

So, I think the answer must be Option D:

All of the above.

(I hope it helps you)