Answer:
The main idea in this paragraph is implicit.
Step-by-step explanation:
Implicit Main Idea is not clearly stated in the paragraph. It is only suggested or inferred by supporting details present in the paragraph. In simple words a paragraph with an implicit main idea does not have any topic sentence.
Explicit Main Idea Paragraphs with explicit main idea have a topic sentence i.e a clearly stated main idea at the beginning, middle or end of the paragraph.
In this paragraph there is no topic sentence. There is no sentence with the main idea in it. We have to make inferences and suggestions to find and write the main idea/topic of the "Judy Blume an exceptionally talented and productive American author" paragraph .