Which of the Following Is True

Multiple Choice

Which of the following is true?

A) a typical ice age is continuously cool.
B) during most of Earth's history,the planet has been much cooler than it has been during the last two million years.
C) modern humans and their immediate ancestors (Homo erectus and Homo sapiens) lived during a climate anomaly.
D) the geologic record indicates that past climate changes have been abrupt.
E) our climate knowledge is based primarily on fossil material preserved in amber.