Mars's moon, phobos, has an irregular shape and is best known for its many craters, including one gigantic crater. (2) deimos also has a number of craters, but some of its surface looks smoother because some of the craters have been filled in. (4) some scientists believe mars's two moons are asteroids that got caught by mars's gravity.

which of these choices is the best topic sentence for the composition?

a)
phobos and deimos are full of craters.

b)
earth is not the only planet with a moon.

c)
mars has two moons, named phobos and deimos.

d)
planets sometimes pull asteroids with their gravity

Excerpt from urban agriculture terri roberts telling a which of these is written in the narrative mode? a) the most important aspect of urban agriculture is the way it fosters community. people who lived down the block from one another had never spoken before we planted the garden. now, neighbors wave to each other on the street and have a real relationship. b) urban agriculture is an undertaking that our city just cannot afford at this time. how can we spend millions of dollars to clear the land and build a garden when we don’t have enough money in the budget to get our children the education they deserve? it seems like an expense that will just have to wait. c) i had never been to a farm before my class took a trip to a city garden. when we arrived, i spotted chickens walking around. there were even two goats grazing on a patch of grass. the tour guide explained the importance of city farmers while showing us around the tiny garden. she handed me a fresh green bean to try. it tasted really sweet! d) i think that urban agriculture is a great solution to many of our city's problems. it’s difficult for many families to find fresh, affordable produce in the city. with a city garden right down the road, it would be easy for people to get the vegetables and fruits they need. this would also our citizens begin to adopt healthier lifestyles.