According to Gladwell, what does the example actually show about social media as a strategy for social change?

a.This example shows that social media is a less effective strategy than Shirky claims it is.


b.This example shows that social media is only an effective strategy for low-risk action.


c.This example shows that social media is effective at organizing, but the effects don't last.


d.This example shows that social media is effective at getting people involved in social issues.