"it's" is the correct form
I believe it is Quantity.
The singular noun in this sentence would be the word "Sand" because it's talking about the "Hot sand".
He walked across the hot "sand", hot is used to describe the word sand.
Thus your answer.... B. sand.
Hope this helps. :)
Answer:
Confront
Explanation:
They don't come face to face with each other
Your personality.
Till then. -ayeitswesley