Answer:
"Into the Killing Seas" is a historical fiction novel by Michael P. Spradlin, which tells the story of the sinking of the USS Indianapolis during World War II. "AR" likely refers to "Accelerated Reader," a reading comprehension program used in many schools.
If you're asking for an AR test on "Into the Killing Seas," I do not have access to specific AR tests or quizzes as they are typically created and administered by individual schools or teachers. However, I can tell you that the book is often recommended for middle grade readers and has a lexile level of 800L, which means it is suitable for readers at an 8th-grade reading level.