D. It tripled, mostly due to people moving in from other places
Explanation: in 1850 the population of Texas was 212,592. In 1860 the population shot up to 604,215
He Ran Unsuccessfully For President Of The United States
I would say D, but I'm unfamiliar with Islamist's and their ideologies.
B. Lincoln had not dealt sternly enough with the southerners.
Hillary Clinton said "The Revolution is coming!"