选择题
2022 AMC 8 Problem 23: Triangle and Circle Grid
A △ or ○ is placed in each of the nine squares in a 3-by-3 grid. Shown below is a sample configuration with three △s in a line. How many configurations will have three △s in a line and three ○s in a line?
2022 AMC 8 第23题：三角形和圆形网格
3×3 网格中的九个方格中的每个方格中都放置了 △ 或 ○。下面显示的是一个示例配置，其中三个 △ 排成一行。三个△并排，三个○并排有多少种配置
A.
39
B.
42
C.
78
D.
84
E.
96