During the Industrial Age what was one important way businesses told consumers about new products? through phonographs through telephones through telegraphs through catalogues

## Step 1<br />The question is asking about the primary method businesses used to inform consumers about new products during the Industrial Age. The options provided are phonographs, telephones, telegraphs, and catalogues.<br /><br />## Step 2<br />During the Industrial Age, businesses had to find a way to reach a large number of consumers. The options of phonographs, telephones, and telegraphs were not as effective because they were either too expensive or not widely available.<br /><br />## Step 3<br />On the other hand, catalogues were a cost-effective way for businesses to reach a large number of consumers. They could be sent through the mail to a large number of people, and they could be updated regularly to reflect new products.<br /><br />## Step 4<br />Therefore, the correct answer is D, catalogues.