In a relay race, Ainslee runs the first lap in 72 seconds. Bridget runs the next lap at \frac{9}{10} of Ainslee’s speed. Cecilia runs the next lap at \frac43 of Bridget’s speed. Dana runs the last lap at \frac65 of Cecilia’s speed. What is their total time, to the nearest second?
Answer Choices
A. 4 minutes, 48 seconds
B. 4 minutes, 22 seconds
C. 5 minutes, 27 seconds
D. 4 minutes, 37 seconds
E. 3 minutes, 46 seconds