In the 1970s there was an oil shortage that convinced law markers to reduce speed limits in order to reduce gas usage. During that time, the number highway deaths also decreased. Did the reduction in speed limits cause the number of deaths to decrease?

Presumably yes, because with higher speeds there is less control when driving leading to an increase in wrecks.

Explanation:

china has confucianism thats everywhere in asia but it isn't really a religion.  

b. martin luther king jr. wrote and spoke "i have a dream"

explanation:

i know this 100 percent is correct   b. is the best one. < 3