The old, dilapidated house stood on a desolate, windswept hill overlooking the stormy, turbulent sea.
Correct: E
Commas are used to separate two or more coordinate adjectives that modify the same noun. 'Old' and 'dilapidated' are coordinate adjectives modifying 'house', so a comma is needed between them. Similarly, 'desolate' and 'windswept' are coordinate adjectives modifying 'hill', requiring a comma. Finally, 'stormy' and 'turbulent' are coordinate adjectives modifying 'sea', also requiring a comma. Option E correctly uses commas to separate all coordinate adjectives in the sentence.