Answer:
The transition that would best fit in the given sentences is as a result.
Step-by-step explanation:
The given sentence is structured using cause-and-effect organization.
Cause-and-effect organization of paragraph is one of the way of organizing a paragraph in such a manner that it explains the effect of a certain ccause.
The transition words that are mostly used in 'cause-and-effect' organization to link lines are 'therefore, consequently, or as a result.'
The linking word that would best fit to link the given two lines, thus, would be as a result.
It is because it is showing the cause that 'Canals and railroads lessened the cost of moving goods' and the effects on price; 'Price fell on goods from across the country due to lower shipping costs.'
Thus the correct answer from given options is as a result.