You are writing a research paper about how cell phones can improve education in the US. Your Internet search yields the following information: 1. On January 1, Japan will begin using 11-digit numbers because cell phones are so popular that they fear running out of 10 digit numbers.
2. As of September 3, 2008, cell signals are more available than ever. There are now 1,947,083 microwave towers and antennas for cell phone use in the United States.
3. In August 2009, Juliette LaMontangne reports, "In the US, 76% of students ages 12 to 18 have their own cell phone."
4. People use their cell phones to call others when they feel bored or need to kill a few minutes because they didn't plan ahead by bringing some reading material.

Rank this information from most relevant topic to least relevant topic.
A.
use 3; then 2; then 4; but not 1, which is off topic
B.
use 3; then 2; then 4; then 1; all are relevant
C.
use 3; then 2; but not 4 or 1, which are both off topic
D.
use 3; then 2; then 1; then 4; all are relevant