Janos has been asked by his teacher to give, in his own words, a short explanation of the key points in an article. what has janos been asked to do?

paraphrase
retell
summarize
give an opinion

Janos has been asked to summarize.

Explanation:

To summarize means to give a brief account of the important points of the passage or given written text. A close reading of the given text is the first step to summerize it. After the close reading, the text is put into own words. Summarization does not involve putting one's ideas. It is the process of putting the ideas logically without using the words of the writer.