Why was the 1920s USA consumer boom fragile?

A. यह credit and loans पर heavily depend करता था / It depended heavily on credit and loans

Step 1: Identify the concept: this is consumer credit. Step 2: Credit buying increases demand but defaults can create crisis. Step 3: Remember 1920s boom with credit dependence.

Step 1: concept पहचानें: यह consumer credit है। Step 2: Credit buying demand बढ़ाता है पर defaults होने पर crisis आ सकती है। Step 3: 1920s boom को credit dependence से याद रखें।