12. "Before applying the screen protector, first clean the surface of your phone's screen with a soft cloth. Once the surface of your screen is clean, remove the paper backing on the screen protector. Then evenly apply the sticky side of the screen protector to your phone's screen Smooth out any air bubble trapped on between the protector and the phone screen. Enjoy the added protection. With the given signal words, what type of informational text structure does this selection show?

A. Descriptive
C. Comparison and Contrast
B. Temporal-sequence
D. Cause and Effect​