Answer:
A mast
Explanation:A mast is a pole that rises vertically from a ship and supports the sails. Really big sailboats have more than one mast. A mast is also another name for flagpole.
The gerund phrase would be "is foolish" because it indicates what reckless driving is.
The given sentence in the item above presents lots of ideas. The sentence may also be divided into several parts in order to extract the most important one. The most important idea in this sentence, I believe, is that the owners refer to water their lawns despite the drought regulations.
It would be D:
While I was at the gym—wondering what machine to use next—I ran into my neighbor.
