In a survey of 2065 adults in a certain country conducted during a period of economic uncertainty, 54% thought that wages paid to workers in industry were too low. The margin of error was 9 percentage points with 90% confidence. For parts (a) through (d) below, which represent a reasonable interpretation of the survey results? For those that are not reasonable, explain the flaw.

(a) We are 90% confident 54% of adults in the country during the period of economic uncertainty felt wages paid to workers in industry were too low.

(b) We are 81% to 99% confident 54% of adults in the country during the period of economic uncertainty felt wages paid to workers in industry were too low.

(c) We are 90% confident the proportion of adults in the country during the period of economic uncertainty who believed wages paid to workers in industry were too low was between 0.45 and 0.63.

(d) In 90% of samples of adults in the country during the period of economic uncertainty, the proportion who believed wages paid to workers in industry were too low is between 0.45 and 0.63.