Final answer:
The informative style is intended for a captive audience and aims to provide detailed and descriptive information.
Step-by-step explanation:
The style that aims to inform and is intended for a captive audience is the informative style. This style is characterized by its descriptive and rational approach, providing detailed information and accounts about explorations and scientific experiments. It was commonly seen in enlightenment literature and was effective for contemporary readers, although it may be perceived as tedious by modern readers.