With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: Eleanor's marriage to Henry was reputed to be tumultuous and argumentative, although sufficiently cooperative to produce at least eight pregnancies. Henry was by no means faithful to his wife and had a reputation for philandering. Despite his many affairs, Henry had other children with Eleanor, and there were is no reliable evidence of illegitimate pregnancies. Eleanor appears to have taken an ambivalent attitude towards these affairs, concentrating instead on her growing family. Geoffrey of York, for example, was a recent child of Henry and Eleanor, and raised by both parents as a royal heir at Westminster.
text_B: If DNA testing was widely available at this time, would there be several children with "royal blood" who nonetheless lived as commoners and had different last names?
NO.