Find and Interpret the Margin of Error

Multiple Choice

Find and interpret the margin of error.
-A recent poll of 120 adults who frequent the local farmer's market found that 54 have
Purchased reusable cloth bags for their groceries. Based on these data, what is the margin
Of error for a 95% confidence interval of the proportion of adults who have purchased
Reusable cloth bags?

A) 0.0454
B) 0.0117
C) 0.089
D) 0.075
E) 0.0432