On that list of choices, 'C' is the only "example" of a plane.
None of the choices "describes" a plane.
Answer:
<em>c. ABBA counterbalancing
</em>
Explanation:
The student should not use the method because it is a progressive error management technique for each subject by introducing all <em>treatment circumstances twice, first in one sequence, then in the other (AB, BA) by subject counterbalancing.</em>
If participants experience conditions more than once, they experience the conditions first in one order, then the opposite order.
<span>The motion of the medium is parallel to a longitudinal wave
and perpendicular to a transverse wave.</span>
It must be a virtual image, because this is the only kind of image it can produce.
