Answer: a. resource
Explanation:A resource map shows where certain natural resources are found.
I have added a picture example
<span>Sydney</span><span>Melbourne</span><span>Gold Coast</span><span>Brisbane</span><span>Adelaide</span><span>Perth</span><span>Canbera
</span>
The correct answer is D) a wide area of dry land located along the southern edge of the Sahara.I'm 100% sure for this answer.