F=ma 2018 Part B Problem 19

In an experiment to determine the speed of sound, a student measured the distance that a sound wave traveled to be 75.0 \pm 2.0 \mathrm{~cm}, and found the time it took the sound wave to travel this distance to be 2.15 \pm 0.10 \mathrm{~ms}. Assume the uncertainties are Gaussian. The computed speed of sound should be recorded as

Answer Choices
A. 348.8 \pm 0.5 \mathrm{~m} / \mathrm{s}
B. 348.8 \pm 0.8 \mathrm{~m} / \mathrm{s}
C. 349 \pm 8 \mathrm{~m} / \mathrm{s}
D. 349 \pm 15 \mathrm{~m} / \mathrm{s}
E. 349 \pm 19 \mathrm{~m} / \mathrm{s}