Answer:
The correct answer is "The sales clerk showed Jenny an array of shirts, including ones with stripes and ones with polka dots."
Step-by-step explanation:
The word "array" basically means an assortment of something that is displayed in an ordered manner. So a bookshelf would have an array of books, a cloth store would have an array of clothes, and so on. Light rays could I suppose be displayed in an ordered manner but then again light isn't really tangible (touchable) so array doesn't apply there. Hope it helped! :)