What text structure has the writer used in this passage?

washing your own laundry is easy, as long as you know the proper way to do it. first, you should organize your clothes into piles based on colors, fabric, and washing instructions. start with your light-colored laundry. use hot water, especially if your clothes are stained. then determine if you have a small (one-fourth full), medium (one-half full), or large (three-fourths full) load. next, you’ll need to read your laundry detergent directions to determine how much to add. if you want your clothes, towels, and bedding to be soft, you should add fabric softener as well. finally, put your clothes in the washing machine. if you have a top-load washing machine, turn it on, add your clothes, and close the lid. if you have a front-load washing machine, add your clothes, close the door, and turn the machine on.

a. chronological order
b. cause and effect
c. compare and contrast
d. problem and solution