Please help me ASAP.

During the 1800s. hope this !

Is this a question of an answer

Answerthe global climate during the paleogene departed from the hot and humid conditions of the late mesozoic era and began a cooling and drying trend which dispite having been periodically disrupted by warm periods such as the paleocene-eocene thermal maximum, persists today;

The answer is d, you can easily test a theory! hope i you : )