The school board in a certain school district obtained a random sample of 200 residents and asked if they were in favor of raising property taxes to fund the hiring of more statistics teachers. The resulting confidence interval for the true proportion of residents in favor of raising taxes was (0.183, 0.257). The margin of error for this confidence interval is

(a) 0.037.

(c) 0.220.

(e) 0.740.

(b) 0.183.

(d) 0.257.