A steel wire is pulled taut in an experiment to determine the Young modulus for steel. The measurement uncertainties are listed below: - load on wire: $\pm 2\%$ - length of wire: $\pm 0.2\%$ - diameter of wire: $\pm 1.5\%$ - extension: $\pm 1\%$ What percentage uncertainty is there in the Young modulus?
- A1.3\%
- B1.8\%
- C4.7\%
- D6.2\%