They are called a literary letter or a epistle
Answer:
Correct option is D: Community gardens began in 1998, which resulted in a positive environmental impact on neighborhoods across the nation.
Explanation:
The most format style of a sentences is shown in option D because it provides great meaning without too much full-stops and avoid parallel errors. In option A and B, there are too many stops and almost meaningless phrases standing alone. Option C would have been a good option, but using "so" after the comma and "worry about getting good" and "healthy stuff to eat" makes it informal.
Timothy was so vain that the very first thing he did every morning was to look at himself in the mirror for five minutes.
