Final answer:
The key to popularity at Booker T. Washington high was Booker T. Washington's approach of advocating for industrial education, conciliation of the South, and submission and silence as to civil and political rights.
Step-by-step explanation:
The key to popularity at Booker T. Washington high was Booker T. Washington's approach of advocating for industrial education, conciliation of the South, and submission and silence as to civil and political rights. This program gained support from both the South and the North, and while it faced initial protest from African Americans, it eventually silenced or converted them.