Hey quick question Select a detail from the text that demonstrates the overall text structure.

A Herping enthusiasts enjoy spending their days in nature, searching for amphibians and reptiles.
B Due to increasing human activity in the state of Arizona, many species have lost their habitats.
C Other times, they travel long distances to visit attractions, putting more carbon dioxide into the atmosphere.
D Much of this research has to do with declining amphibian and reptile populations.

just say a b c d for the answer

and if you take this tst all ready tell me and iil ltel you the questions im having problems with