48. According to the passage, which of the following statements is NOT true? (A) When a raincoat is “virtually water-proof,” it is 100% water-resistant. (B) “Firefighters” are preferred over “firemen.” (C) “Weasel words” coined by Carl P. Wrighter would intentionally give reckless customers ambiguous information. (D) Using “custodial worker” to refer to “janitor” is appropriate and pleasant.