5 Urban agriculture has taken hold in many cities across Canada and Europe—the practice is still a novelty in many U. S. cities. Organizers are hoping to change people’s ideas about farming by showing people that big things can happen with a little patch of soil and some seeds. Recently, volunteers transformed the lawn in front of San Francisco’s city hall from a quarter acre of grass into a lush garden of tomatoes, spinach, and beans. San Francisco’s Food Bank will receive donations from the harvested food.

What is the BEST way to summarize paragraph 5

A) People are trying to make urban agriculture more popular in the U. S.
B) Urban agriculture is extremely unpopular and unsuccessful in the U. S.
C) San Francisco's Food Bank is losing a lot of money to urban agriculture.
D) Urban agriculture is significantly more difficult and frustrating than most people first believe.