How many different ways can 2 students be seated in a row of 3 desks, so that there is always at least one empty desk between the students?
Choose the correct choice from the following answers.
A) 2	B) 3	C) 4	D) 6	E) 12

Rationale: "1 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 1 x 2 = 2 a"
Answer: A