Which sentence uses the demonstratives correctly? a. this huge tree on maple street is not a maple tree. b. that huge tree on maple street is not an maple tree. c. that huge tree on maple street is not a maple tree. d. this huge tree on maple street is not an maple tree.

The answer to the question above is "That huge tree on Maple Street is not a maple tree". The demonstrative pronoun used is that which pinpoints specifically to the tree on the street. Since the speaker is far from the tree, the pronoun that should be used is "that". 

The answer is B. That huge tree on Maple Street is not a maple tree.

That will be used since the speaker is not in Maple Street, and consequently far from the maple tree.

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Iwould go with c both type but i wouldn’t go with my answer because it might be wrong.