12 students took a group photo, with 4 people standing in the front row and 8 people standing in the back row. Now the photographer will draw two people from the back row and adjust them to the front

12 students took a group photo, with 4 people standing in the front row and 8 people standing in the back row. Now the photographer will draw two people from the back row and adjust them to the front row. If the relative order of others remains the same, then C

Test analysis: there are two ways to choose two people from the back row of 8 people in the first step, and six people in the front row in the second step. The first two people selected have one way, and then the other four people only arrange 1 way, so the total number of methods is

Comments: The solution of this kind of problem generally follows the method of selecting the back row first, combined with the principle of step-by-step counting.