Answer:
The answer is: C) You should advise the client to contact an attorney who specializes in estates and tax issues related to estates.
Step-by-step explanation:
Since your are not a lawyer, and this situation requires a lawyer, then you should advice your client to look for one that specializes in estates and estate taxes.
When someone dies, even of natural causes, things get complicated and when money is involved, the complication is much greater. There are unforeseen issues that might show up relating to the estate and applicable taxes that should be handled by an attorney that specializes in that area.