You are talking to your grandmother—who grew up in the 1960s—about climate change. She asks you a lot of questions about the issue, and in the end, isn’t sure she believes it to be a problem. Upon reflection, what belief about climate that was popular in the 1960s might have influenced your grandmother’s conclusion that she isn’t sure climate change is a problem?

A.
Climate only consisted of temperature, rather than the modern belief that climate includes other aspects.

B.
The Earth had four climate stages, and we are not due for a fifth for 10,000 years.

C.
Climate change happened over hundreds and thousands of years, not quickly.

D.
The little ice age was still happening, so our temperatures should be going down.