Which of these colleges offers programs specifically related to trade entrance exam preparation?

Lethbridge Community College is the correct choice because it offers specific programs designed for students to prepare for trade entrance exams. These programs provide practical training and theoretical knowledge that are essential for success in various trades. The curriculum is tailored to ensure that students gain competencies and skills that align with the requirements of the trades they wish to enter.

In contrast, the University of Lethbridge and St. Mary's University primarily focus on academic and professional degree programs, which may not emphasize trade-specific training or preparation for trade entrance exams. Similarly, while College of the Rockies provides a range of vocational programs, its offerings do not specifically target trade entrance exam preparation in the way Lethbridge Community College does. This makes Lethbridge Community College the most suitable option for individuals seeking direct preparation for trades.