Answer:
a
Explanaiton that was what i think nasa told me i hope this helps
Polar easterlies is the answer because it is in the polar area
I can't see the picture, but to do the dilation you must first figure out the coordinates of the first image and then figure out what half of it is and add that on to the new image or take that much off of the new image.
*To dilate means to make bigger or smaller
