The correct option is:
E-mail, the Internet, and cell phones have transformed the way in which people share ideas
Some key reasons why there are still poor nations in an otherwise advanced world:
O Oppressive or unstable governments that limit a citizen's ability or desire to excel
This limits economic and social progress. Poor leadership and governance hamper development.
O The inability to sustain a growing population due to disease and/or famine
This creates cycles of poverty, lack of healthcare, poor nutrition, disease - all of which sustain underdevelopment.
O Lack of natural resources to help a nation develop trade
Without resources, countries struggle to build industries, trade partners, and wealth.
E-mail, Internet and cell phones themselves do not necessarily transform a poor nation's economy or development levels. They are tools that can be utilized, but do not automatically cause broad-based improvements on their own. Technology needs to be coupled with other factors like governance, healthcare, education, resource access, etc. to help lift countries out of poverty.
So in summary, while technology can help in development, it is not enough on its own to substantively transform poor nations. Political, economic, social and resource-based challenges are bigger roadblocks.