Use the passage to answer the question.
"I've seen a lot of fossils in my career, and this was a fossil that
gave me the chills," O'Keefe said. "A big, mostly complete fossil
with a baby inside of it - that's awesome."
Which phrase from the passage best represents an idiom? (1 point)
O with a baby inside of it"
O "I've seen a lot of fossils"
O "gave me the chills"
"that's awesome"