In Peck's antitrust suit against manufacturers of insulation, Peck's interrogatories asked for information concerning total sales of insulation by each of the defendant manufacturers in a particular year. The defendants replied to the interrogatories by referring Peck to the Insulation Manufacturers' Annual Journal for the information. If, at trial, Peck offers the annual journal as evidence of the sales volume, this evidence is
admissible as an adoptive admission of the defendants. admissible as a business record. inadmissible, because it is hearsay, not within any exception.  inadmissible as lacking sufficient authentication