What do sinkholes, canyons, and sea stacks have in common? A.
They are all formed by water erosion.
B.
They are all made of limestone.
C.
They can be found only along coasts.
D.
They are all caused by deposition.

I believe its d

Explanation:

the answer would b b

seeing as no choices were provided, i'll do my best to answer it from knowledge.

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