Twelve education students, in groups of four, are taking part in a student-teacher program. mark cannot be in the first group because he will be arriving late.
how many ways can the instructor choose the first group of four education students?
220
330
1,980
7,920

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.