How did innovations in manufacturing lead to improvements in transportation?

Goods were produced efficiently and needed more efficient transportation.

Explanation:

Goods were produced efficiently and needed more efficient transportation. Goods became more valuable and required safer transportation. Inventions used in textile production also improved transportation systems. Multiple cottage industries meant an increased need for travel to cities.

answer; /// the correct answer is evidence of the olmec civilization has been found in southern american in a hot steamy forest, archaeologists have found earthen artifacts at several sites that were evidence of the olmec civilization. these   artifacts were mounds,courtyards and pyramids build of stones, also on top of the mounds were many monuments made of stone, some of these stone structures are very large, they weigh as much as 44

yup! you are correct it is b.