What was the greatest impact of social media on the revolution that followed the Iranian presidential election of 2009
It was used by the public to organize political protests
It was used as a platform to discuss new political campaigns
It was used by the authonties to identify protesters in the upnsing
It was used to create a strong political bias against the elected officials.

randy pausch was a famous mathematician, writer and lecturer who is particularly famous for his last speech, given in 2007, "the las lecture", because he illustrates why one's dreams need to be pursued in a logical order if success is to be obtained, option c. at this time, pausch had been diagnosed with terminal cancer so he told the audience to follow their childhood dreams, which were possible to achieve. it has been recognized as one of the best motivational speech around the world.

hola no soy de ayuda, pero esto debería ayudar: 73829649237640234762038

umm yes it is bad manners?