When grendel says unferth's "beard and hair hung straight down like seaweed" (88), what literary device is being used? a. figurative language b. point of view c. alliteration d. kenning

The answer is:  [A]:  "figurative language" . 

         Specifically, a "simile" is being used—that is, a comparison of two unlike things using "like" or "as":  

   "beard and hair hung straight down like seaweed"  ;

and a "similie" is a type of "figurative language". 

Technically speaking, "alliteration" , which is: choice:  [C] , is being used, which is a type of figurative language:  "hair hung" ;  "straight...seaweed"; 

However, the best answer choice—and correct answer choice—is:

   [A]:  "figurative language" .

The phrase “...beard and hair hung straight down like seaweed” is an example of figurative language. This particular sentence contains a simile, which uses the word “like” or “as” to compare two things.

The answer is A.

I hope this helps!