Look at the events below. Which happened before Diego told Maggie that Ripley was missing?
A.
、Maggie and Diego decided they'd need more clues to find Ripley.
B.
、Diego and his dad called Ripley, but Ripley didn't come.
C.
、Maggie rubbed her foot because she'd stubbed her toe.
D.
、Diego wondered why Maggie runs outside wearing flip-flops.