Walking or biking to work is an example of an action that can support which goal? . a. reduce deforestation. b. reduce overpopulation . c. reduce climate changes. d. increase biodiversity.: ]

I would say C. Reduce climate change because taking a car/vehicle results in the earth becoming polluted which leads to climate change.  

*EXPLANATION*
Riding your bike or walking will not do anything to help people chopping down trees, people giving birth to more and more children nor will increase the amount of animals/organisms we have on our planet.