Read the following excerpt from "i sell a dog" by mark twain: twenty-four dollars a week would really have been riches to us if we hadn't had to support that jug; because of the jug we were always sailing pretty close to the wind. What is the role of the idiom in this sentence?.

The smokey mountains have over 2,100 miles of rushing mountain streams and rivers that flow through the park. in each mile lives a diverse community of native fish, amphibians, insects, and larvae, some of which are found only in the southern appalachians. park managers and scientific researchers test many factors such as fish populations, the watersheds and water tests to determine a) too many lizards are present b) the water quality of the stream c) rainwater is running into local streams d) if visitors to the park are overstaying their welcome