Answer:
Specialization has helped in these four ways:
1. Has created economics of scale in Nigeria, which improve economic efficiency and increase output while reducing average costs at the same time.
2. Has improved the agricultural sector, which continues to be very important for the Nigerian economy.
3. Has helped bring the electrification of the country.
4. Has helped raise the standard of living in the country, because in general terms, the larger the economy, the higher the standard of living.