Read the paragraph from an expository essay. Answer the question that follows.

The monarch population is decreasing. The monarchs are facing numerous threats. The monarch population has declined rapidly. The monarchs need our help.

Which paragraph successfully uses varied sentence structure and interesting punctuation to improve the flow of the writing?

Monarch butterflies face multiple threats to their survival. Loss of habitat is one of these challenges. Pesticide use also poses a considerable risk. Climate change further exacerbates their plight. Scientists recommend taking action.
The monarch butterfly population has been declining. Deforestation is a major factor. Chemicals from farming are also dangerous. This has been happening for a while. It is becoming concerning. The world needs butterflies. They pollinate plants.
Logging impacts monarch butterflies. They migrate in the winter. They move to places where logging takes away their homes. They cannot what do what they need to do to survive the winter. They cannot make it back to where they need to be. They do not have a normal life cycle.
The decline of the monarch butterfly population is due to a number of factors. Destruction of milkweed–the monarchs' primary food source–is particularly concerning, leading to starvation. Urbanization, with its increased construction and human activity, has made the issue worse; the decrease of habitats leaves the butterflies struggling to find spaces that suit their life cycle.