Since the Industrial Revolution

Since the Industrial Revolution,

A) human population growth rates have decreased with a subsequent decrease in the warming trend that characterized pre-Industrial Revolution times.
B) global temperatures rapidly increased,then steadied out over the past 25 to 30 years.
C) global temperatures have continued to warm at accelerating rates.
D) no observable warming or cooling trends have occurred,rather temperatures have oscillated between warm and cold periods.
E) sun spot activity has accelerated,resulting in an apparent warming that will subside when this activity ceases.