Which literary device is used in the following sentence?
according to that report, these special materials can bend "radar, light or other waves around an object, like water flowing around a smooth rock in a stream."
a. simile b. metaphor c. alliteration d. personification idk if it's b or d?

The best and most correct answer among the choices provided by the question is the first choice "simile"

A simile is a figure of speech that makes a comparison, showing similarities between two different things. Unlike a metaphor, a simile draws resemblance with the help of the words “like” or “as”. Therefore, it is a direct comparison. We can find simile examples in our daily speech.

I hope my answer has come to your help. God bless and have a nice day ahead!

Iwould say a but i don’t know what words are underlined