Why is sanitation important in cities

Better urban sanitation unquestionably contributes to environmental protection, through a reduction in pollution of soils, waterways and groundwater. It also helps to mitigate the adverse impacts of flooding exacerbated by climate change

the 2nd option is the answer

the correct answer is modern american cars are not available due to trade restrictions.

trade between cuba and the united states have serious restrictions. the u.s. imposed an economic embargo on cuba, that among other things means that modern american cars are not available due to trade restrictions.

in response to some governmental actions of the authorities from cuba, president john f. kennedy proclaimed an embargo on trade between both countries in february 1962. the trade embargo remains active until this day and was implemented directly by the departments of commerce and the department of treasury.

in president trump’s administration, there is a national security presidential memorandum that "strengthens the policy of the u. s.", affecting trade with cuba.