Answer: the answer is between
Answer:
No author can predict the future, yet George Orwell's talent as a foreseer is extraordinary. From the early 1930s onwards, he was astute in picking out things about us that would endure and resurface many decades later.
If the underlined phrase is <em>having been warned by her mother, </em>then this is a nonessential perfect participial phrase.
Nonessential phrases are separated from the rest of the sentence by commas, and since this is a perfect participle, this is the only correct option.
