How many different ways can 2 students be seated in a row of 6 desks, so that there is always at least one empty desk between the students?	Select
A) 2
B) 3
C) 4
D) 20
E) 12
10 ways to seat the students:   with two empty seats between   1 empty w/ one student on the left most   1 empty....right most   two students can be interchanged   10x2=20   20
<result>D</result>
How many different ways can 2 students be seated in a row of 6 desks, so that there is always at least one empty desk between the students?