2016 AMC 8 Problem 16

Annie and Bonnie are running laps around a 400-meter oval track. They started at the same time, at the same place, but Annie has pulled ahead because she runs 25\% faster than Bonnie. How many laps will Annie have run when she first passes Bonnie?

\textbf{(A) }1\dfrac{1}{4}\qquad\textbf{(B) }3\dfrac{1}{3}\qquad\textbf{(C) }4\qquad\textbf{(D) }5\qquad \textbf{(E) }25

Full credit goes to MAA for authoring these problems. These problems were taken on the AOPS website.