原电池Pt,H<sub>2</sub>(p<sup>0</sup>)|H<sub>2</sub>SO<sub>4</sub>(0.01m)|O<sub>2</sub>(p<sup>0</sup>),Pt在298K时,E=1.228V,并已知H<sub>2</sub>O(l)的生成热<img src="https://nimg.ppkao.com/2019-04/hutao/2019042513425566974.jpg?sign=da9239fc45522b75370feaf0ec07fa59&t=62d5d5db" />=-286.06kJ·mol<sup>-1</sup>,n=2,那么该电池的温度系数是:()
A、-8.53×10-4V·K-1
B、-4.97×10-3V·K-1
C、4.12×10-3V·K-1
D、8.53×10-4V·K-1