已知定义域为R的奇函数f(x)的导函数为f'(x)，当$x\ne 0$时，$f\text{'}\left(x\right)+\frac{f\left(x\right)}{x}>0$，若$a=\frac{1}{2}f\left(\frac{1}{2}\right),b=-2f(-2),c=\ln \frac{1}{2}f\left(\ln 2\right)$,则下列关于a,b,c的大小关系正确的是（     ）

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I'm a Chinese boy. My name's Wu Qiang. I1 in Beijing now, because my 2work here. I 3in a high school, and I'm 4 Class 2, Grade 3. I usually 5 to school6bus. Sometimes I 7 a bike. My home is fifteen 8 from school. I don’t go to school 9 Saturdays and Sundays, so I always stay at home to do my homework, and it often 10 me half a day on Saturday. On Sunday I often go to the park with my parents. I have fun on weekends.