My father won’t talk about the numbers
3-7-8-2-5 between the wrist and elbow
blue as blood as his left forearm.
which technique is used in these excerpted lines?

a. irony
b. fixed verse
c. simile
d. conceit

My father won’t talk about the numbers3-7-8-2-5 between the wrist and elbow
blue as blood as his left forearm.The  technique that  is used in these excerpted lines is  simile 
because simile is a part of speech that compare two things that are alike in some sense
so OPTION C is correct
hope it helps

The answer is !