Deborah Meaden became a Dragons' Den investor when she joined the UK panel in series 3.
Meaden is an English businesswoman and investor known for building experience across family businesses, leisure, retail and tourism. Her arrival expanded the panel after the departure of Rachel Elnaugh, one of the investors from the first series.
Series 3 places Meaden's debut early in the programme's history, but not at its launch. That timing is a common source of confusion because she has become one of the show's most recognisable long-term dragons. She subsequently appeared in many series and became strongly associated with practical questions about customers, margins and operational growth.
The other names in the answer choices joined at different points or belonged to the original line-up. In particular, Rachel Elnaugh was a founding dragon, while Kelly Hoppen and Sara Davies arrived much later.