Which step should you do first when analyzing an informational text?

A.

Identify the main idea and supporting details

B. Determine the author's purpose
C. Summarize the text
D. Evaluate the credibility of the source

Read the text carefully

The first step when analyzing an informational text is to read the text carefully. By reading the text, you can gather information and understand the main ideas and supporting details presented. This allows you to gain a general understanding of the content before diving deeper into analysis. Therefore, the answer is A.