How did building central park in new york city influence the work of urban planners?
a. it made it difficult for urban planners to buy the land they needed for similar projects.
b. it set an unreasonable standard for most urban planners.
c. it emphasized the development of recreational area as part of urban growth.
d. it forced planners to consider using skyscrapers.

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c. It emphasized the development of recreational area as part of urban growth.

Explanation:

After New York city planners did central park, the main recreational park in the city, to provide a place for all citizens and habitants of the city to spend time and have recreational activities made all urban planners to have in mind this situation and to keep in mind to save the space for a recreational land for activities.

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering

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