The temperature of a body measured by a thermometer with a least count of $0.2 ^\circ C$ is $37.8 ^\circ C$. The temperature with error is represented as ... and the percentage error of the observation is ...
- A$(37.8 \pm 0.2) ^\circ C, 0.5\%$
- B$(37.8 \pm 0.2) ^\circ C, 0.2\%$
- C$(39.8 \pm 0.2) ^\circ C, 0.5\%$
- D$(38.0 \pm 0.2) ^\circ C, 0.5\%$
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