How did access to oceans and rivers the progress of industrialization in britain?
it allowed the unemployed to migrate to other countries with better economic opportunities.
it provided quicker migration of people from rural areas to cities, where industries were located.
it provided for quicker transport of manufactured goods, which strengthened trade.
it motivated investors to invest in british industries that depended on rivers and seas.

The correct answer is - It provided for quicker transport of manufactured goods, which strengthened trade.

The fact the Britain is an island country, helped it a lot, because it had an open way for export and import on its territory and it was also able to be done relatively quickly. Since it had a way of quickly import raw materials, and export manufactured goods, Britain was able to develop its industries very quickly, and they were growing more, to a point were they became the dominant players on the world market.